UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460

OFFICE OF CHEMICAL SAFETY AND

POLLUTION PREVENTION

MEMORANDUM

DATE : September 30 , 2010

SUBJECT : Crop Grouping

– Part IX: Analysis of the USDA IR

- 4 Petition to Amend

the Crop Group Regulation 40 CFR § 180.41 (c) (16) and Commodity Definitions [ 40 CFR 180.1 (g)] Related to the Crop Group 14 Tree Nuts. Part I. Analysis.

PC Code: NA DP Barcode: NA

Decision No.: NA Registration No. : NA

Petition No.: NA Regulatory Action: Crop Grouping Regulation Risk Assessment Type: None Case No.: NA

T XR No.: NA CAS No.: NA

MRID No.: 4743 31

- 01 40 CFR: 180.41 (c) (16) and 180.1 (g)

FROM : Bernard A. Schneider, Ph.D., Senior Plant Physiologist

Chemistry and Exposure Branch Health Effects Division (7509P)

THROUGH : William Donovan, Ph.D. and Michael Doherty, Ph.D., Chairpersons

HED Chemi stry Science Advisory Council (ChemSAC) Health Effects Division (7509P)

TO : Barbara Madden, Minor Use Officer

Risk Integration, Minor Use, and Emergency Response Branch (RIMUERB) Registration Division (7505P)

cc: IR

- 4 Project, Bill Barney, Jerry Baron, Dan Kunkel, Debbie Carpenter, Van

Starner2

ACTION REQUESTED :

William P. Barney, Crop Grouping Project Coordinator and Tracey Switek, USDA Interregional Research Project No. 4 (IR

- 4), State Agricultural Experiment Station, Rutgers University has submitted a petition (May 29, 2008) on behalf of the IR

- 4 Project, and the Tree Nuts Workgroup of the International Crop Grouping Consulting Committee (ICGCC) to amend the Crop Group Regulation 40 CFR § 180.41 (c) (16) Crop Group 14, Tree Nut Group.

Th e above

- mentioned Tree nut crop group petition requested the following four proposals:

IR

- 4 Proposal 1: “Amend the existing crop group in 40 CFR 180.41 (c) (14) that consists of following 12 commodity entries:

1. Almond, Prunus dulcis (Mill.) D.A. Webb ( Rosa ceae )

2. Beechnut, Fagus spp. ( Fagaceae )

3. Brazil nut, Bertholletia excelsa Bonpl. ( Lecythidaceae )

4. Butternut, Juglans cinerea L. ( Juglandaceae )

5. Cashew, Anacardium occidentale L. ( Anacardiaceae )

6. Chestnut, Castanea spp. ( Fagaceae) )

7. Chinquapin, Castanea pumila (L. ) Mill. ( Fagaceae )

8. Filbert (Hazelnut), Corylus spp. ( Betulaceae )

9. Hickory nut, Carya spp. ( Juglandaceae )

10. Macadamia nut, Macadamia integrifolia Maiden & Betche ( Proteaceae )

11. Pecan, Carya illinoinensis (Wangenh.) K.Koch ( Juglandaceae )

12. Walnut, black and Engli sh, Juglans spp. ( Juglandaceae );

To an expanded crop group that consists of following 32 commodity entries :

1. Almond, Prunus dulcis (Mill.) D.A. Webb ( Rosaceae )

2. Beechnut, Fagus spp. ( Fagaceae )

3. Betelnut, Areca catechu L. ( Arecaceae ( Palmae ))

4. Brazil nut, Bert holletia excelsa Bonpl. ( Lecythidaceae )

5. Brazilian pine, Araucaria angustifolia ( (Bertol.) Kuntze ( Araucariaceae )

6. Bunya, Araucaria bidwillii Hook. ( Araucariaceae )

7. Bur oak

, Quercus macrocarpa Michx. ( Fagaceae )

8. Butternut, Juglans cinerea L. ( Juglandaceae )

9. Ca jou, Anacardium giganteum Hancock ex Engl. ( Anacardiaceae )

10. Candlenut, Aleurites moluccanus (L.) Willd. ( Euphorbiaceae )

11. Cashew, Anacardium occidentale L. ( Anacardiaceae )

12. Castanha

- do

- maranhao, Pachira glabra Pasq. ( Malvaceae )

13. Chestnut (Chinquapin), Castanea spp. ( Fagaceae )

14. Coconut, Cocos nucifera L. ( Arecaceae ( Palmae ))

15. Ginkgo, Ginkgo biloba L. ( Ginkgoaceae )3

16. Guiana chestnut, Pachira aquatic Aubl. ( Malvaceae )

17. Hazelnut (Filbert), Corylus spp. ( Betulaceae )

18. Heartnut, Juglans ailantifolia var. cordiformis (Makino ) Rehder ( Juglandaceae )

19. Hickory nut, Carya spp. ( Juglandaceae )

20. Japanese horse

- chestnut, Aesculus turbinata Blume ( Sapindaceae )

21. Macadamia nut, Macadamia integrifolia Maiden & Betche ( Proteaceae )

22. Monkey

- pot, Lecythis pisonis Cambess. ( Lecythidaceae )

23. Okari n ut, Terminalia kaernbachii Warb. ( Combretaceae )

24. Pachira nut, Pachira insignis (Sw.) Savigny ( Malvaceae )

25. Pecan, Carya illinoinensis (Wangenh.) K.Koch ( Juglandaceae )

26. Pequi, Caryocar spp. ( Caryocaraceae )

27. Pili nut, Canarium ovatum Engl. ( Bursraceae )

28. Pine nut, Pinus edulis Engelm. ( Pinaceae )

29. Pistachio, Pistacia vera L. ( Anacardiaceae )

30. Sapucaia nut, Lecythis zabucaja Aubl. ( Lecythidaceae )

31. Tropical almond, Terminalia catappa L. ( Combretaceae )

32. Walnut, black, Juglans spp. ( Juglandaceae ) and Walnut, English, Juglans regia L. ( Juglandaceae )

A nd all edible varieties and/or hybrid s of Fagus species, Castanea species, Corylus species, Carya species, Caryocar species, and Juglans species.”

IR

- 4 Proposal 2 : Representative Commodities:

IR

- 4 recommends that the followi ng commodities, Almond and Pecan, remain as representative commodities for the expanded group.

IR

- 4 Proposal 3 . Crop Subgroups:

No crop subgroups are proposed for the Tree Nuts crop group.

IR

- 4 Proposal 4 . Crop Definitions:

No commodity definitio ns for the Tree Nuts are proposed.

BACKGROUND:

The current Crop Group 14, Tree Nuts group published in 40 CFR 180.41 (14) includes 12 commodity entries in seven botanical families including Anacardiaceae

, Betulaceae, Fagaceae

, Juglandaceae

, Lecythida ceae , Proteaceae, and Rosaceae

. Almond and pecan were selected as representative commodities for this group. There4

have been 55 group tolerances established on tree nut crop group (Table 29) based on the residue data generated from the representative cro ps.

Botanically, a nut is a hard indehiscent (not opening at maturity) one

- seeded fruit. It is also defined as a hard shelled fruit or seed of which the kernel is eaten by humans. A

nut is the seed of a tree. However, a nut in commerce and cuisine h as a much less restrictive definition than a nut in botany. The term is applied to many seeds that are not true nuts. Any large kernel found within a shell and used in food may be regarded as a nut. For example, almond is the edible seed of a drupe, whi le the Brazil nut is the seed from a capsule. Candlenut and cashew nut are seeds. Pine nut is the seed of several species of pine, while the pistachio nut is the seed of a thin

- shelled drupe. Peanuts can be disqualified from “nuts” because peanuts inclu de two or three seeds in the indehiscent pod and are legume crops.

Nuts are highly nutritious with up to 30 percent protein and up to 70 percent oil. Chestnuts are unusual in that the major food reserve is starch (50

- 60 percent). Nuts are a good sour ce of minerals, including calcium, phosphorus, iron, sodium and potassium and also the vitamin B complex and vitamin E. Nuts have been found in archaeological sites dating back to before 10,000 BC. Several epidemiological studies have also

revealed that people who consume nuts regularly are less likely to suffer from coronary

heart disease.

Since the tree nut crop group is a somewhat artificial crop group and because the various crops within the group come from diverse families, they are not expected to be susceptible to the same pests and diseases requiring the same pesticide treatment. In fact there are 18 different plant families represented in this proposed tree nut crop group. However, in practice, residues (expressed on the edible portion) in tr ee nuts from field use are often low or not detectable irrespective of the pesticide use, so a tree nut group tolerance can be achieved. Also, most are grown in similar orchard or plantations and maintained with similar cultural practices. U.S., Codex, a nd EU Tree nut crop group tolerances are summarized in Table 30). Many of these tolerances were based on residue data generated from the representative crops. The majority of these tolerances range from 0.01 to 0.5 ppm with one Codex tolerance establishe d at 1 ppm for carbaryl.

Since this crop group was established in 1995, more species and varieties of tree nuts have become popular in commercial production and international trade. Tree nuts that were previously considered as orphan crops include tropi cal almond, betelnut, coconut, ginkgo, heartnut, bur oak, pili nut, pine nut and pistachio.

The Crop Group 14 proposal was generated at the USDA/IR

- 4 Crop Grouping Symposium in Washington, DC, October 2002 by the Temperate Tree and Small Fruit Workgroup Chaired by Van Starner of USDA, IR

- 4 and Co

- Chaired by Craig Hunter, Canadian Horticultural Center, Rick Melnicoe, University of California Department of Environmental Toxicology, Dr. Richard Loranger and Chris Olinger, EPA, HED and John Wise, Michigan Sta te University . It was further discussed and developed within the5

Tree Nut Workgroup of the International Crop Grouping Consulting Committee (ICGCC). This workgroup consists of 122 crop or regulatory experts from the US, NAFTA, EU, Asia, Middle East, Afri ca, and Latin America regions representing 24 countries. The Workgroup discussed and validated each of the proposed commodities and representative commodities. The crops in the existing tree nut crop group were all validated at the Symposium. It was pro posed that “Filbert (hazelnut)” be changed to “Hazelnut (filbert)”. Additional tree nuts proposed at the Symposium included guana, nut

- o

- nogal, cajou, dalison, okari nut, bunya and candlenut. These additional tree nuts were also validated at the Symposiu m, except it was later determined that dalison should be considered as part of the tropical fruit group. Also, guana was not included in this submission since it apparently only grows in eastern Cuba and is a threatened species. Nut

- o

- nogal has been

incl uded with black walnut.

The concept of having separate temperate and tropical/subtropical subgroups was not validated at the Symposium, so no subgroups are proposed in this submission. The Symposium also proposed crop definitions for the representative crops of almond and pecan, but due to the previously discussed diverse taxonomic nature of tree nuts, no crop definitions are proposed in this submission.

Another important aspect is the harmonization with the Codex crop classification.

The Codex Class ification of foods and animal feeds for Tree nut Group is also undergoing revision. The IR

- 4/EPA Crop Grouping Working Group and the International Crop Grouping Consulting Committee (ICGCC) are making every effort to

collaborate with the revision of the C odex crop classification. The expanded Tree Nut Group and the representative commodities proposed in this petition would facilitate the harmonization of the U.S. and the Codex crop classification systems. Proposed additions

to the Codex Classification in cluding Brazilian pine, castanha

- do

- maranhao, Guiana chestnut and monkey

- pot were also included in the petition.

Tree nuts presented to the ICGCC but not validated by the Workgroup include the Australian or Moreton Bay chestnut, canarium nut, shea nut, s uari nut, African walnut and tallow tree. One additional tree nut validated is the pequi. Two proposed crops, purging nut and karanj were not accepted because of the poisonous nature of the nut or bean and because development of these crops is primarily for biofuels. One additional proposed crop kalamungay ( Moringa oleifera ) will also be considered to be added to a future tropical fruit crop group. Further work by the ICGCC also identified four more potential commodities to be proposed for the Tree nut group. They are the African nut
tree [ Ricinodendron heudelotii (Baill.) Heckel], dika nut [ Irvingia gabonensis (Aubry

Lecomte ex O’Rorke) Baill.], mongongo nut [ Schinziophtyon rautanenii (Schinz) Radcl.

- Sm.], and the peach palm nut [.

T he world total hec tares for tree nuts (almond, betelnut, brazil nut, cashew, chestnut, coconut, hazelnut, pistachio, and walnut) reported by FAO (FAO 2009, Table 6) have increased from 17,420,730 hectares (ha) in 1997 to 19,961,492 ha in 2007, and the total production of th ese nuts has increased from 57,174,933 metric tons in 1997 to 72,519,897 metric tons in 2007 ( FAO 2007 )

.6

S ome “minor” tree nut commodities like the chestnut, pine nut, and okari nut are also becoming more popular. Some of these nuts don’t have large co mmercial production, and thus have little chance to be added to pest control products labels unless they are placed in the tree nut group. By being excluded from the crop groups, means that tolerances requested for these commodities would have to be estab lished based on separate residue studies. Without a doubt the inclusion of these commodities in crop groups will benefit growers, consumers, save time and tax payer’s money on residue studies, save government agencies time in reviewing residue data, as we ll as facilitating the establishment of import tolerances. Many of these crops are of economic importance or have a great potential to be grown in larger scale in the future due to their nutritional

value or medicinal value , or the increased market demand driven by both the growing ethnic populations and greater awareness of these crops by the non

- ethnic population as a whole. The American cuisine has a distinct global nature that includes many orphan crops not yet in a crop group.

HED RECOMMENDATIONS :

Each of the proposals and recommendations will be discussed below, followed by a series of other recommendations on terminology, database development, and harmonization with Codex. The EPA would like to commend the valuable and high quality input of t he ICGCC, all its members, and the Committee Chairperson Bill Barney,

USDA IR

- 4, as well as Dr. Yuen

- Shaung Ng, Biologist, HED, Doug Dotson, Chemist, Susan Stanton, Roger Chesser, Andy Ertman, and Laura Nollen, Biologists, RD, EPA for their input and devel opment of various databases in this report and Dr. Paul Schwartz, USDA, Office of Minor Use Pesticides for his advice and peer review of the analysis.

IR

- 4 Proposal 1:

1. “Amend the existing crop group in 40 CFR 180.41 (c) (14) that consists of following 12 commodity entries:

1. Beechnut, Fagus spp. ( Fagaceae )

2. Brazil nut, Bertholletia excelsa Bonpl. ( Lecythidaceae )

3. Butternut, Juglans cinerea L. ( Juglandaceae )

4. Cashew, Anacardium occidentale L. ( Anacardiaceae )

5. Almond, Prunus dulcis (Mill.) D.A. Webb ( Rosaceae )

6. Chestnut, Castanea spp. ( Fagaceae )

7. Chinquapin, Castanea pumila (L.) Mill. ( Fagaceae )

8. Filbert (Hazelnut), Corylus spp. ( Betulaceae )

9. Hickory nut, Carya spp. ( Juglandaceae )

10. Macadamia nut, Macadamia integrifolia Maiden & Betche ( Proteaceae )

11. Pecan, Carya ill inoinensis (Wangenh.) K.Koch ( Juglandaceae )

12. Walnut, black and English, Juglans spp. ( Juglandaceae );

To an expanded crop group that consists of following 38 commodity entries :7

1. African nut tree, Ricinodendron heudelotii (Baill.) Heckel, (Euphorbiaceae )

2. Alm ond, Prunus dulcis (Mill.) D.A. Webb ( Rosaceae )

3. Beechnut, Fagus spp. ( Fagaceae )

4. Betelnut, Areca catechu L. ( Arecaceae ( Palmae ))

5. Brazil nut, Bertholletia excelsa Bonpl. ( Lecythidaceae )

6. Brazilian pine, Araucaria angustifolia ( (Bertol.) Kuntze ( Araucariaceae )

7. Bunya, Araucaria bidwillii Hook. ( Araucariaceae )

8. Bur oak

, Quercus macrocarpa Michx. ( Fagaceae )

9. Butternut, Juglans cinerea L. ( Juglandaceae )

10. Cajou, Anacardium giganteum Hancock ex Engl. ( Anacardiaceae )

11. Candlenut, Aleurites moluccanus (L.) Willd. ( Euphorbi aceae )

12. Cashew, Anacardium occidentale L. ( Anacardiaceae )

13. Castanha

- do

- maranhao, Pachira glabra Pasq. ( Malvaceae )

14. Chestnut Castanea spp. ( Fagacea)e

15. Chinquapin, Castanea spp. ( Fagaceae )

16. Coconut, Cocos nucifera L. ( Arecaceae ( Palmae ))

17. Dika nut, Irvingia gabon ensis (Aubry

- Lecomte ex O’Rorke) Baill ( Irvingiaceae)

18. Ginkgo, Ginkgo biloba L. ( Ginkgoaceae )

19. Guiana chestnut, Pachira aquatic Aubl. ( Malvaceae )

20. Hazelnut (Filbert), Corylus spp. ( Betulaceae )

21. Heartnut, Juglans ailantifolia var. cordiformi s (Makino) Rehder ( J uglandaceae )

22. Hickory nut, Carya spp. ( Juglandaceae )

23. Japanese horse

- chestnut, Aesculus turbinata Blume ( Sapindaceae )

24. Macadamia nut, Macadamia integrifolia Maiden & Betche ( Proteaceae )

25. Monkey

- pot, Lecythis pisonis Cambess. ( Lecythidaceae )

26. Mongongo nut, Schi nziophyton rautanenii (Schinz) Radcl.

- Sm. ( Euphorbiaceae )

27. Okari nut, Terminalia kaernbachii Warb. ( Combretaceae )

28. Pachira nut, Pachira insignis (Sw.) Savigny ( Malvaceae )

29. Peach palm nut, Bactris gasipaes Kunth var. gasipaes ( Arecaceae (alt. Palmae))

30. Pecan, C arya illinoinensis (Wangenh.) K.Koch ( Juglandaceae )

31. Pequi, Caryocar spp. ( Caryocaraceae )

32. Pili nut, Canarium ovatum Engl. ( Bursraceae )

33. Pine nut, Pinus edulis Engelm. ( Pinaceae )

34. Pistachio, Pistacia vera L. ( Anacardiaceae )

35. Sapucaia nut, Lecythis zabucaja Aubl

. ( Lecythidaceae )

36. Tropical almond, Terminalia catappa L. ( Combretaceae

37. Walnut, black, Juglans spp. ( Juglandaceae )

38. Walnut, English, Juglans regia L. ( Juglandaceae )

A nd all edible varieties and/or hybrid s of Fagus species, Castanea species, Corylus species

, Carya species, Caryocar species, and Juglans species.”8

HED Recommendations for Proposal 1:

Based on similarities of the comparison of tree nuts cultural practices, edible food and animal feed portions, residue levels, geographical locations, proces sing, established tolerances, and for international harmonization purposes, I recommend that ChemSAC concur to amend the Tree Nut Crop Group 14 from twelve commodities to thirty

– nine

commodities. In fact there are 18 different plant families represented in this proposed tree nut crop group. Since the tree nut crop group is a somewhat artificial crop group and because the various crops within the group come from diverse families and they are all not expected to be susceptible to the same pests and diseas es requiring the same pesticide treatment, but their harvesting, processing (hulling, drying), marketing, and nutritional value are very similar. However, in practice, residues (expressed on the edible portion)

in tree nuts from field use are often low or not detectable irrespective of the pesticide use, so a tree nut group tolerance can be achieved. Also, most are grown in similar orchard or plantations and maintained with similar cultural practices.

While USDA IR

- 4 also recommended adding betelnut to the Tree nut group, however, after analysis of this crop, I recommend ChemSAC concur not to add this commodity to this crop group. Betelnut is used mostly as a stimulant crop and is chewed during the day, so it does not have shared the traditional uses o f the tree nut crops. Also,

I recommend to delete C astanha

- do

- maranhao ( Pachira glabra Pasq), because it is

limited to Brazil and appears to have limited chance f or further expansion.

There were no crop subgroups proposed by IR

- 4 for this crop group. H ED is also recommending adding three other commodities that meet the tree nut criteria to the group. The three commodities are: coquito nut, monkey puzzle nut, and yellowhorn.

These three nuts are available through commercial nursery catalog to grow in t he U.S. and coquito nut is already available in the marketplace.

The members of this crop group have similar uses, and all are consumed after maturity or consumed cooked or roasted in various recipes including salads, meats, and

cookies. Some of these tr ee nuts also have medicinal properties. Many of the tree nuts from the same botanical family with similar biological and cultural aspects suggests they should also encounter similar pest problems and hence have similar needs for pest control products in s imilar use patterns. All of these commodities except for betelnut were found

to have similar characteristics and uses to become a member of the Tree nut group.

The list of acceptable tree nuts and their scientific names for the thirty

- nine

commodities were also updated and are listed below.

“HED Proposed Tree Nut Crop Group 14

- 10”.

Commodities
African nut tree, Ricinodendron heudelotii (Baill.) Heckel
Almond, Prunus dulcis (Mill.) D.A. Webb
Beechnut, Fagus grandifolia Ehrh., F. sylvatica L., F. sylvatica L. subsp. s ylvatica
Brazil nut, Bertholletia excelsa Humb. & Bonpl.9

Commodities Brazilian pine, Araucaria angustifolia (Bertol.) Kuntze Bunya, Araucaria bidwillii Hook.

Bur Oak

, Quercus macrocarpa Michx., Quercus spp

. Butternut, Juglans cinerea L.

C ajou, Anacardium giganteum Hance ex Engl.
Candlenut, Aleurites moluccanus (L.) Willd.
Cashew, Anacardium occidentale L.
Chestnut, Castanea crenata Siebold & Zucc., C. dentata (Marshall) Borkh., C.

mollissima Blume, C. sativa Mill. Chinquapin, Castanea pumila (L.) Mill., Castanea ozarkensis Ashe
Coconut, Cocos nucifera L Coquito nut, Jubaea chilensis (Molina) Baill. Dika nut, Irvingia gabonensis (Aubry

- Lecomte ex O’Rorke) Baill. Ginkgo, Ginkgo biloba L.
Guiana chestnut, Pachira aquatica Aubl.

Hazel nut (Filbert), Corylus americana Marshall, C. avellana L., C. californica (A. DC.) Rose, C. chinensis Franch., Corylus spp. Heartnut, Juglans ailantifolia C arrière var. cordiformis (Makino) Rehder, Juglans ailantifolia Carrière Hickory nut, Carya cathaye nsis Sarg., C. glabra (Mill.) Sweet, C. laciniosa (F. Michx.) W. P. C. Barton, C. myristiciformis (F. Michx.) Elliott, .C. ovata (Mill.) K. Koch, C. tomentosa (Lam.) Nutt. Japanese horse

- chestnut, Aesculus turbinata Blume
Macadamia nut, Macadamia integri folia Maiden & Betche, Macadamia tetraphylla L.A.S. Johnson Mongongo nut

, Schinziophyton rautanenii (Schinz) Radcl.

- Sm. Monkey

- pot, Lecythis pisonis Cambess. Monkey puzzle nut, Araucaria araucana (Molina) K. Koch

Araucariaceae Okari nut, Terminalia ka ernbachii Warb.
Pachira nut, Pachira insignis (Sw.) Savigny Peach palm nut, Bactris gasipaes Kunth var. gasipaes
Pecan, Carya illinoinensis (Wangenh.) K.Koch Pequi, Caryocar brasiliense Cambess., C. villosum (Aubl.) Pers, Caryocar nuciferum L.

Pili nu t, Canarium ovatum Engl., Canarium vulgare Leenh. Canarium indicum L.
Pine nut, Pinus edulis Engelm., P. koraiensis Siebold & Zucc., P. sibirica Du
Tour, P. pumila (Pall.) Regel, . P

. gerardiana Wall. ex D. Don, P. monophylla Torr. & Frém., P. quadrifolia Parl. ex Sudw. . P

. pinea L.
Pistachio, Pistacia vera L. Sapucaia nut, Lecythis zabucaja Aubl. Tropical almond, Terminalia catappa L.
Walnut, black, Juglans hindsii Jeps. ex R. E. Sm.

, J. mi crocarpa Berland., J. nigra

L.10

Commodities Walnut, English, Juglans regia L.
Yellowhorn, Xanthoceras sorbifolium Bunge Sapindaceae, Cultivars, varieties, and hybrids of these commodities

HED Additional Recommendation for Proposal 1:

 HED also recommends that in the crop group table the term “ all edible varieties

and/o r hybrid s of Fagus species, Castanea species, Corylus species, Carya species, Caryocar species, and Juglans species varieties and/or hybrids of these” should be changed to, “Cultivars, varieties, and hybrids, of these

commodities” to avoid all confusion wi th terminology regarding whether they are cultivars, varieties, or hybrids of the any tree nut commodities. This is also consistent with the other revised crop groups completed to date.

 HED also recommends changing the preferred commodity name for filber t to hazelnut, since hazelnut is the commodity term used in international trade and the U.S. Hazelnut Growers Marketing Board since 1981 has changed their name

from filbert to hazelnut even though filbert is the correct name for the tree and

nut. The name is of French origin and the tree was likely first introduced into Oregon by early French settlers. Hazelnut is the name coined by the English and it was applied to the native species by early settlers. The EPA Food and Feed Commodity Vocabulary ( http:// www.epa.gov/pesticides/foodfeed ) for filbert will be changed to hazelnut as the preferred commodity term in the next vocabulary update.

IR

- 4 Proposal 2:

“The following commodities, Almond and Pecan, should remain as representative

commodities for the ex panded group.

HED Recommendation for Proposal 2:

I recommend ChemSAC concur to retain almond and pecan , as representative commodities for the amended Tree Nut Crop Group 14. These representative

commodities account for > 74 % of the harvested acres for the members of the amended Tree Nut Group, and are the two most widely grown tree nuts in the U.S. with the largest acreages and geographical distribution . The representative commodities are based on similarities in fruit (nut) and cultural practices and geographical locations, as well as their high production (both acres and yield) and consumption. A comparison of established tolerances on tree nut commodities also supports that residue levels will be similar between members of the crop group.11

IR

- 4 Proposal 3: “No subgroups are proposed for the Tree Nuts crop group.”

HED Recommendation for Proposal 3 :

I agree that the Tree nut crop group will not benefit from establishing any crop subgroup.

IR

- 4 Proposal 4: “No Tree Nut crop definitions are pr oposed.”

HED Recommendation for Proposal 4 Commodity Definition for Tree Nuts:

I agree that commodity definitions are not needed for the tree nuts.

Additional HED Recommendations/Conclusions:

HED Recommendation 5:

Another important aspect of cr op grouping is the harmonization effort with the Codex Classification of Foods and Animal Feeds. The current EPA crop group for Tree nut group 14 is very similar to the corresponding Codex Group 022, Tree Nuts , which

consists of nineteen commodities inclu ding matches to the all the twenty

- four commodities in the proposed amended EPA crop group 14. The differences are because several of the Codex commodities refer to another commodity in a similar manner to the EPA Food and Feed Commodity Vocabulary Lookup to Preferred Tolerance Terms, such as “Pignolia”, see Pine nuts. Several Codex names are equivalent to lookup terms in the EPA Food and Feed Commodity Vocabulary like filberts is hazelnuts. The thirty commodities listed by Codex are really nineteen indi vidual commodities. The U.S. is proposing to add the following commodities: African tree nut, betelnut, Brazilian pine, bunya, bur oak, cajou, candlenut, castanha

– do

- maranhao, chinquapin, dika nut, ginkgo, Guiana chestnut, heartnut, monkey pot, monkey puz zle nut, okari nut, pachira nut, and pequi, that are not yet in the Codex system.

Recently, Codex has been reviewing the list of commodities in a revised Tree nut group 022 (Secretariat, 2010) derived from the USDA IR

- 4 proposal and these will also

be listed in Table 36 with the corresponding EPA commodity term.

Note that the current Codex crop group does not have representative commodities. A revision of the Codex Classification is underway with consideration to include adding new commodities, cre ating subgroups, and selecting representative commodities. A revision of the Codex Classification is also underway with consideration to include adding new commodities, creating subgroups, and selecting representative commodities.12

The IR

- 4/EPA Crop Group ing Working Group and the International Crop Grouping Consulting Committee (ICGCC) are making effort to cooperate with the Codex revision

effort. The expanded Tree nut group and the representative commodities proposed in this petition would facilitate the harmonization of the U.S. and the Codex crop classification

systems. In the next proposed revision to the Codex Classification of Foods and Animal Feeds we would expect these changes to be considered as additions to their Tree nut group in the harmonizat ion effort that Bill Barney, USDA IR

- 4 is coordinating with the Codex delegation. Therefore, this proposal will not only increase harmonization with the NAFTA crop grouping system, but it more compatible with the international system of

Codex. The Food Quality Protection Act of 1996 placed increased emphasis on using Codex MRLs in setting tolerances for pesticides in the U.S. Note that the current Codex crop group does not have representative commodities.

HED Recommendation 6:

The Health Effects Division Dry Matter database prepared by Dr’s. NG and

Schneider. Yuen

- Shaung NG and B. A. Schneider, was updated on July, 2010 in Table 40 for the Tree nut Group.

HED Recommendation 7:

Guidance for HED SOP 99.6

- “Classification of Food Forms with Respect to Level of Blending” issued August 20, 1999, and HED SOP 2000.1

– “ Guidance for Translation of Field Trial Data from Representative Commodities in the Crop Group Regulation to Other Commodities in Each Crop G roup/Subgroup” issued September 12, 2000 can be updated to reflect the amendment to the Tree nut group 14.

HED Recommendation 8:

Guidance on expressing tolerance terminology for the Tree nut crop group 14 is discussed under the “Tolerance expression gui dance section of this analysis.

HED Recommendation 9:

New lookup and preferred EPA terms for the members of the Tree Nut Crop Group are listed in the EPA Food and Feed Commodity Vocabulary section of this report and these terms will be to the updated EP A Food and Feed Commodity Vocabulary

website ( http://www.epa.gov/pesticides/foodfeed ) when it is updated.

.13

ANALYSIS OF THE USDA IR

- 4 PROPOSAL TO ESTABLISH AN AMENDED

TREE NUT GROUP 14:

BOTANI CAL CHARACTERISTICS OF PROPOSED COMMODITIES:

Tree nuts are members of several plant families including: Anacardiaceae (cajou, cashew, pistachio), Arecaceae / Palmae (betelnut, coconut, coquito nut, peach palm nut),

Araucariaceae (Brazilian pine, bunya, mon key puzzle), Betulaceae (hazelnut),

Bursraceae (pili nut), Caryocaraceae (pequi), Combretaceae (tropical almond, okari nut), Euphorbiaceae (African nut tree, candlenut, mongongo nut), Fagaceae (beechnut, bur oak, chestnut, chinquapin), Ginkgoaceae (Ginkgo)

, Irvingiaceae (dika nut), Juglandaceae (butternut, heartnut, hickory nut, pecan, black walnut, English walnut), Lecythidaceae (Brazil nut, monkey pot, sapucaia nut), Malvaceae (Castanha

- do

maranhao, pachira nut, Guiana chestnut), Pinaceae (pine nut), Prot eaceae (Macadamia nut), Rosaceae (almond), and the Sapindaceae (Japanese horse

- chestnut, yellowhorn).

What is A Tree Nut?

T here are many different types of nuts in this crop group. The fruits of many hardwood trees have four layers: an outer skin, a soft layer high in sugars, a hard shell, and a seed. When we eat the soft layer it is called a fruit, but when we eat the seed we call it a nut. There is a wide assortment of edible nuts in the world with many countries having tree plantations to produc e edible nuts and many are gathered in the wild from

native stands.

Botanical Definition of a Tree Nut:

The botanical definition of nut a simple dry fruit (embryo) with one seed (rarely two) in which the ovary wall becomes very hard (stony or woody) at maturity, and where

the seed remains unattached or u nfused with the ovary wall. Nuts are all indehiscent (not opening at maturity). All the nuts in this group are grown on trees or shrubs.

The U.S. FDA has published a list of tree nuts US Food and Drug Administration Center for Food Safety and Applied Nutrition . This list includes all tree nuts that are required to be listed on food labels.

Common name Scientific name

Almond Prunus dulcis ( Rosaceae )

Beech nut Fagus spp. ( Fagace ae )

Brazil nut Bertholletia excelsa ( Lecythidaceae )

Butternut Juglans cinerea ( Juglandaceae )

Cashew Anacardium occidentale,14

Common name Scientific name
( Anacardiaceae ) Chestnut (Chinese, American, European, Seguin) Castanea spp. ( Fagaceae ) Chinquapin Castanea pumila ( Fagaceae )

Coconut Cocos nucifera L. ( Arecaceae (alt.

Palmae ))

Filbert/hazelnut Corylus spp. ( Betulaceae ) Ginkgo nut Ginkgo biloba L. ( Ginkgoaceae ) Hickory nut Carya spp. ( Juglandaceae )

Macadamia nut/Bush nut Macadamia spp. ( Proteaceae )

Pecan Carya illinoensis ( Juglandaceae )

Pine nut/Pinon nut Pinus spp. ( Pineaceae )

Pili nut Canarium ovatum Engl. in A. DC. ( Burseraceae )

Pistachio Pistacia vera L. ( Anacardiaceae ) Walnut ( English, Persian, Black, Japanese, California), Heartnut, Butternut Juglans spp. ( Jugla ndaceae )

Culinary Definition of a Tree Nut:

A nut in cuisine is a much less restrictive category than a nut in botany, as the term is applied to many seeds that are not botanically true nuts. Any large, oily kernel found within a shell and used in food may be regarded as a nut. Pistachios are seeds enclosed in a tough fruit, which does not split open enough to release the seeds . Because nuts generally have a high oil content, they are a highly prized food and energy source. A large number of seeds are edible by humans and used in cooking, eaten raw, sprouted,

or roasted as a snack food , or pressed for oil that is used in cookery and cosmetics . Nuts (or seeds generally) are also a significant source of nutrition for wildlife such as squirrels

which store acorns and other nuts during the autumn to keep them from starving during the late autumn, all of winter, and e arly spring. Peanuts are not nuts but are a legume with the seeds in a mature pod. Nuts are among the most common food allergens

.

The following is a list of some fruits and seed s that are considered nuts in the culinary

sense:

 Almonds and walnurs are the edible seeds of drupe fruits with the leathery

"fle sh" is removed at harvest.

 Brazil nut is the seed from a capsule

.

 Candlenut is a seed and used for oil.

 Cashew nut is a seed.

 Coconut is a dry, fibrous drupe

.

 Guiana chestnut is a nut.

 Horse

- chestnut is an inedible capsule.15

 Macadamia nut is a creamy white kernel.

 Mongongo nut is a drupe.

 Peanut is a legume and a seed and not a nut at all but a pod similar to beans.

 Pine nut is the seed of several species of pine that are evergreen trees.

 Pistachio nut is the seed of a thin

- shelled drupe.

The following is a list of nuts that have edible oils.

Nut oils are generally used in cooki ng for their flavor . They are also quite costly, because of the difficulty of extracting the oil and can spoil or go rancid quickly.

 Almond oil , used as an edible oil, but primarily in the manufacture of pharmaceutical drugs

.

 Candlenut oil, used primarily as a skin care product.

 Cashew oil , somewhat comparable to olive oil . May have value for fighting dental

cavities

.

 Coconut oil , a major cooking oil, high in saturated fat , par ticularly used in baking

and cosmetics.

 Dika nut oil, used to make margarine, soap, and pharmaceuticals.

 Haze lnut oil , mainly used for its flavor. Also used in skin care, because of its slight astringent nature.

 Mac adamia oil , strongly flavored, contains no trans fat , and a good balance of

omega

- 3 and omega

- 6 fatty acids

.

 Mongongo nut oil (or manketti oil ), from the seeds of a tree which grows in South

Africa . High in vitamin E and also used in skin care.

 Palm oil , the most widely produced tropical oil. Popular in West African and

Brazilian cuisine

.

 Pecan oil , valued as a food oil, but requiring fresh pecans for good quality oil

 Pine nut oil usually added to foods as a flavoring agent.

 Pistachio oil , strongly flavored oil, particularly for use in salads.

 Walnut oil , used for its flavor, and was used by Renaissance painters in oil paints

.

Nut butters:

Nut butters are a spreadable foodstuff made by crushing nuts . The result has a

hi gh fat content and can be spread like true butter , but is otherwise unrelated. Peanut butter while not a true nut is listed a culinary nut butter. Nut butters include:

 Almond butter

 Cashew butter

 Hazelnut butter

 Macadamia nut butter

 Peanut butter (not a nut it is a legume)16

 Pecan b utter

 Pistachio butter

 Walnut butter

None of the almond, cashew, macadamia, peanut or pistachio are true nuts in a

botanic al sense. However, because they are considered nuts in a culinary sense, their crushed spreads are called nut butters. Nut and seed butters are rich in protein

, fiber

, and essential fatty acids and can be used to replace butter or margarine on bread or

toast

.

The followin g table gives some of the nutritional properties of a selection of nut butters compared to peanut butter a legume and not a nut:

Tree Nut Butter Calories

(1 tbsp.) Protein

(g) Fat

(g) C alcium

(mg) Zinc

(mg)

Almond butter 101 2.4 9.5 43 0.5

Cashew butter 93 2.8 8 7 0.8

Hazelnut butter 94 2 9.5 N/A N/A

Peanut butter

– natural

Not a tree nut. 94 3.8 8 7 0.4

ANATOMY OF A TREE NUT:

Figure 1. Cross Section of Tree Nuts with Black Wal nut and Hickory Nut Being a Classic Example of a Tree Nut:

An example of a tree nut is black walnut and the cross section shows the outer protective layers and the nut shell:17

The soft layer of ripe walnuts is not eaten, because it stains our skin brown and it cannot be washed off. However, immature black walnuts, hull included, make excellent pickles. Black walnuts are mostly prized for making ice cream, and for toppi ng sugar pies, cakes and rolls. They were widely planted by the native Indians. One of the largest nut plantations in the world was operated by the Mohawk near Caledon , Ontario before

the arrival of European immigrants.

A pictorial cross section of the hickory nut (below) without the outer hulls shows the different parts of the nut and the seed structure . The pericarp is the outer seed coating and the upper layer of the seed coat. Much of the edible kernel weight is made up of the cotyledons , which are about 4.1 to 16.6% of the whole fruit. The hypocotyl is the the part of the stem of a plant embryo or seedling that is below the seed leaves, and the radicle is the rudimentary root of an embryo

.18

The sugar

- rich layer of a fruit encourages wildlife to eat it whole, and then defecate the seed far away from the original tree, where it can grow. However, it is not clear what would eat whole a fruit as large a s a black walnut and the only known source of dissemination of black walnut seed is grey squirrels, which bury nuts for future food

and will still miss some.

Shagbark hickory (see below) was the most valued nut of the native Indians. It

has almost no so ft layer. The skin splits easily into 4 segments as soon as the seed is ripe. However, it only bears well at 3

- 5 year intervals, and is very slow growing.19

The America n chestnut (see below) is a fine nut, but rarely found today because a fungus (Chestnut blight) kills most trees. There are hybrids of the chestnuts being developed to be chestnut blight tolerant. The chestnut has no soft layer and its outer skin

has suc h sharp spines that squirrels can't eat it until the seeds are mature and the outer skin cracks open naturally. Any nuts that squirrels bury and don't find until spring grow into new chestnut trees. Chestnuts are traditionally roasted and eaten as a snac k.20

White oak is another kind of tree nut. Its outer layers are incomplete, and cover less than half the shell, so it is called an acorn (see below). Acorns are a valuable source of food for wildlife, especially jays and squirrels, and were ground to make flour by the native Indians but are rarely used today, but are extensively used in Korea

.

The nuts of conifer trees grow in their cones (see below). Pine nuts are valued raw, for salads and granolas, and used extensively in Italian cuisine.21

Our native No rth American nuts take time and effort to collect and prepare for eating. So most nuts that you buy in stores are from tropical species that grow where labor is very cheap, and from varieties that are selected and hybridized to minimize the

cost of collec tion and processing.

BOTANICAL DESCRIPTION

Almond:

The almond is a small to medium sized tree with a spreading, open canopy, usually 10

- 15 feet in commercial orchards. Almond flowers are nearly identical to peach and other Prunus flowers in structure , but light pink or white in color, and fragrant.

The entire fruit including the hull is a drupe; however, the hull dries and splits prior to harvest, revealing the pit of the fruit. It has a pubescent skin (exocarp), a fleshy but thin hull (mesocarp), a nd a distinct hardened shell (endocarp). The hull enlarges during growth and later becomes dry and leathery and dehisces at harvest. The mature endocarp (hardened shell) ranges from hard to papery. Horticulturally the almond is classified as a

nut in wh ich the edible seed (kernel) is the commercial product. The hull is similar to a peach skin. Fruiting begins in 3

- 4 yr old trees, with maximal production in 6

- 10 years.

Unlike its short

- lived cousin the peach, almond trees can produce for 50+ years. Thinning is unnecessary since a high proportion of flowers must set fruit for normal cropping.22

Cashew

The cashew is a member of the Anacardiaceae family, along with mango, pistachio, poison ivy and poison oak. Anacardium contains eight species, nativ e to tropical America, of which the cashew is by far the most important economically. Cashews are one of the few fruit crops normally grown from seed, and few improved cultivars exist, at least in commercial production. Cashew is a small to medium tree, generally single

- trunk and spreading in habit, up to 40 ft in height but generally kept at

10

- 20 ft in cultivation. In older trees the spread may be greater than height, with lower limbs bending to touch the ground. Flowering is similar to the close re lative mango: both male and perfect flowers are borne in the same inflorescence. Individual flowers are borne terminally on panicles, generally at the beginning of the dry season. Flowering may occur over several weeks. The true botanical fruit is a nut , about 1" long, shaped like a small boxing glove, hanging below a fleshy, swollen peduncle called the cashew apple or pseudofruit (See below). Fruit are borne singly or in small clusters, and mature

in 60

- 90 days. The nut shell has an inner and outer wall, separated by a honeycomb tissue infused with caustic oil. Cracking the nuts fresh results in the oil contaminating the kernel, so nuts are roasted to drive off oils before they are shelled. The nuts are about 22

– 30 % kernel by weight, and kernels are difficult to extract whole compared to the other

tree nuts.23

Chestnut:

The American chestnut is now nearly extinct due to chestnut blight ( Endothia parasitica ), introduced into North America in the 1800's; the fungus girdles and kills trees. Trees planted outside the native range of mid

- west and west coast can escape the disease and live to maturity. In the eastern U.S., this species is now an under story shrub, sprouting from the base of the tree and then dies back when the dis ease becomes severe. Nuts are relatively small (3

- 12 g), but have the best flavor of the four species. The Chinese chestnut is small, spreading trees in cultivation, reaching 40

- 50 ft in height. It is the most tolerant species in terms of chestnut bl ight. Nuts are medium

- large sized (10

- 30 g). The European chestnut is a larger, straighter growing tree (to 100 ft), better for

timber than others. The nut size is medium

- large (10

- 25 g). The Japanese chestnut is a

small tree to 40 ft often with mult iple trunks, and has been cultivated by the Japanese for over 2000 years. It has the largest nuts of the Castanea spp. (30 g), but is bland, astringent, and difficult to remove the pellicle (kernel covering). The flowers are

m onoecious; borne in erect ca tkins (See below), borne laterally in leaf axils on current season's growth; borne near the base of distally borne catkins, which are bisexual. Each female flower contains usually three 3 free carpels, each of which can develop into nuts;

and one

– three nuts are found within each spiny "bur" (involucre). The bur splits into 2

- 4 valves at maturity, exposing the nuts. The nut is a fairly large, brown, and resembles a large, rounded acorn in some species. American chestnuts are the smallest, and Chines e and European the largest of the four species. The chestnut differs from other edible nuts in being high in starch and moisture content, low in oils (fat), and containing more than one nut per involucre. They are generally boiled or roasted to improve f lavor and digestibility.

Chestnut picture ready for roasting:24

Coconut:

Coconut trees are typically single

- trunk palms, reaching up to 100 ft in height, but generally 20

- 50 ft in cultivation. Leaves are among the largest of any plan t (up to 20 ft), with 200 or more leaflets, and borne in a spiral arrangement at the apex of the trunk. Leaf life span may be 3 years, and mature, healthy palms have about 30 leaves, forming a new one and dropping the oldest one each month.

The coconut has separate male and female flowers which are borne in the same

inflor escence, which is a compound spadix arising in the leaf axial . Flowers are off

white to gray or yellow. Flowering occurs continuously, since each leaf axial produces one inflorescence, and new leaves are produced approximately monthly. The coconut

fruit s are large, dry drupes, ovoid in shape, up to 15" long and 12" wide. The exocarp or skin is green, yellow, or bronze

- gold, turning to brown, depending on cultivar and maturity. The mesocarp is fibrous and dry at maturity; the product coir is derived fro m this layer. The endocarp is the hard shell enclosing the seed. Seeds are the largest of any plant, and have a thin brown seed coat. Seeds are filled with endosperm, which is solid and adheres to the seed coat, and also in liquid form, called "milk". Copra is derived from the solid endosperm.25

Hazelnut:

Hazelnuts (filberts) are grown as large shrubs (10

- 15 ft) in Europe, but trained to a single trunk in the Pacific Northwest to facilitate mechanical harvest. Trees begin bearing when 3

- 4 ye ars old, and can bear for up to 40

- 50 years. Trees commonly produce 20

- 25 lbs of dried nuts each. The fruit is a nut in clusters of 1

- 5; with a shape that varies from round to oval, to oblong, and resembles the appearance of an oak acorn. The peri carp is hard, loosely covering the smooth to shriveled kernel and the nuts are surrounded by a green, leafy husk (involucre), and abscise from the base of the husk in late August.26

Macadamia nut:

The macadamia nut is a medium sized, tropical ev ergreen tree, with spreading, full canopies, reaching widths of 30 ft and heights of 20

- 30 ft. The tree yields better when cross pollinated and flowering is not synchronized with trees having flowers, immature

and mature nuts all at one time. Flowers a re borne on long, fragrant racemes (4

- 8") of dozens of individual flowers, from lateral buds on 1

- year wood. Flowering occurs in

mid

- winter and nuts are harvested 7

- 8 months later in July

- November although some

nuts mature more

- or

- less year round. Botanically the fruit is a drupe; the fleshy outer portion is removed to reveal the nut. Nuts number from 10

- 30 on crowded stalks, and are covered with thick, shiny green hulls (= mesocarp and exocarp), which are adherent to the shell (= endocarp). Nut s are round, with kernels enclosed in hard shells, with shelling percentages of 40 %.27

Pecan:

Pecans are large, long

- lived trees (up to 200 years old) with upright, vase

- shaped crowns when open

- grown. Pecans are the largest orchard trees i n the U.S. reaching 60

- 80 ft tall, and having densities as low as 10

- 15 trees per acre. The pecans are monoecious; male inflorescences are pendulous spikes commonly referred to as catkins

which are 2

- 6" in length. The female inflorescences are also spikes, born terminally on current season's growth. Both male and female flowers are green in color, with

individual flowers about 1/8" in size. Flowers are incomplete and both sexes lack petals and sepals. Nuts are borne in terminal clusters of 2

- 10 individuals terminally on current season's growth. The green, fleshy shuck is composed of bract and ovarian tissue (exo

and mesocarp), and surrounds the nut until maturity. The shuck dehisces along 4 regular sutures, unlike walnuts which lack sutures. Nuts are ovoid, 1

- 2 inches long, containing a large embryo composed mostly of two cotyledons or kernels with nut sizes ranging

from 27

- 100 nuts/lb; "good" size is considered 50 nuts/lb. Cotyledons are separated by a thin, papery central plate extendi ng from the inner layer of the endocarp.28

Peach palm nut :

The peach palm nut is a palm with multiple trunks that grows 20 to 30 meters (66 to 98 feet) tall. It is native to Central America and Southwestern Amazonian includ ing Northern Bolivia, Southeastern Peru and Western Brazil. Stem diameter ranges from 15 to 30 centimeters (6 to 12 inches). The crown contains 15 to 25 dark green pinnate fronds. Leaflets of the fronds grow at different angles. Long strands of inflore scences occur among the axils of the fronds. Separate tiny yellowish male and female flowers are contained within the same inflorescence. The fruit is a drupe that varies in shape and grows in clusters of 50 to 1,000. One stem can contain 5 to 6 cluster s of fruit. Each fruit grows 2.5 to 5 centimeters (1 to 2 inches) long and weighs 10 to 250 grams (0.4 to 9 ounces). The skin is thin, fibrous and red, purple, orange, yellow or green in color. The humid, starchy/oily pulp is yellow to orange in color. Most fruit contain a fibrous/oily, white, conical

- shaped, 8 to 10 centimeter (3 to 4 inch) kernel. The flavor of the fruit is fruity to chestnut

- like. The seed is nutty, oily and has a coconut

- like flavor. The aroma of the fermented pulp smells like ri pe peaches. A typical bunch weighs 1 to 25 kilograms (2 to 55 pounds). Wild

- type fruit are rich in oils and domesticated fruit are rich in starch. Currently, the plant is also very important in both Latin American and world markets for

its heart

- of

- palm

.

Pine Nut:

Pine nuts are tall conifer trees, up to 12.2 m (40 ft), found in warm to cool temperate regions throughout North America, Europe and Asia, usually in dry areas. These pines have stout branches, and varying needles. Cones are near globose or broad ovate, compact until mature. Seeds are about 1.3 cm (1/2 in) long, elongated and angular. All species of pine have edible seeds, but only a few are considered large enough to be worth gathering or cultivating; the Korean Pine being the most wide ly traded.

Pistachio:

The pistachio is small to medium sized dioecious trees, obtaining heights of 20 ft but generally smaller in cultivation. Male and female flowers are borne on separate plants. Inflorescences of several hundred tiny, brownish

- gree n flowers are borne laterally

on 1

- yr wood with the flowers lacking petals, and have up to 5 sepals. The inflorescence is a panicle in both cases with 13 primary branches, each bearing 1 terminal and 5

- 19

lateral flowers. Most fruit set occurs from ter minal flowers and fruit set averages about 10%. Botanically, the fruit is a drupe but is marketed as a nut. The hull is thin and fleshy, pale tan in color with a red blush at maturity (See below). One unique feature of pistachios among other nut crops i s that the endocarp (shell) splits naturally prior to maturity. The percentage of splitting ranges from 50

– 75 % in ‘Kerman' cultivars, and can be reduced by drought stress. Nuts with unsplit shells are removed and cracked mechanically. Pistachios produ ce heavy crops every

- other

- year, alternating with little or no crop in "off" years.29

Walnut:

The walnut is a medium to large tree (to 100 ft in nature, kept at 20

- 50 ft in cultivation with a spreading crown. The shuck of Persian walnut does not split into 4 regular sections at maturity as it does in pecan and hickories and it splits irregularly . All walnuts are monoecious, bearing male and female reproductive organs on separate flowers on the same tree. Catkins (male inflorescences) are borne laterally on one

- year wood, and pistillate flowers are borne terminally or la terally (newer cultivars) on current season's wood in spikes of typically 2

- 3 flowers. The fruit is a nut that is borne singly

or in clusters of 2

- 3 on shoot tips. A green, fleshy shuck surrounds the nut, which splits irregularly at maturity. The sh ell is rough, wrinkled or furrowed, and thin (see below). Nuts are ovoid to round, 1⁄2

- 2 inch diameter, containing two kernels separated by a thin, papery central plate extending from the inner layer of the shell.30

Nuts of the Persian walnut ‘Hartley' (left) and ‘Chandler' (right). Walnut kernels are the cotyledons of the embryo, as in pecan, but are more deeply furrowed and rounded than the pecan.

ORIGIN AND HI STORY OF TREE NUT CULTIVATION

Almond:

Almond and related species are native to the Mediterranean climate region of the Middle East from Pakistan eastward to Syria and Turkey. The almond and its close relative, the peach, probably evolved from the same ancestral species in south

- central Asia. Almonds were domesticated at least by 3000 BC, and perhaps much earlier since wild almonds have been unearthed in Greek archeological sites dating to 8000 BC. The almond was spread along the shores of the Mediterr anean in northern Africa and southern Europe by Egyptians, Greeks, and Romans. It was brought to California in the 1700s by Spanish Padres who settled the Mission at Santa Barbara. Around the turn of the century, the industry started in California, due t o development of superior cultivars in the late 1800s. From then until about 1960, the industry grew at a moderate pace, but acreage and production have increased several

- fold since then, making California the clear world leader in almond production. In 2007, there were over 615,000 acres of almonds in California, making it the most widely planted tree crop in the state.31

Cashew:

Cashew is native to northeastern Brazil, in the area between the Atlantic rain forest and the Amazon rainforest. Indigenou s Indians consumed the nut and the enlarged pedicel referred to as the “cashew apple” and they roasted the nuts to remove the toxic outer covering. The Portuguese introduced cashew to the west coast of India and east Africa in the 16th century, shortly af ter its discovery in 1578. It was planted in India initially to reduce erosion, and uses for the nut and pseudofruit, the cashew apple, were developed much later. Nut domestication predated the arrival of Europeans to Brazil, although international nut t rade did not occur until the 1920s. India developed more refined methods for removing the caustic shell oil, and this country is given credit for developing the modern nut industry.

Chestnut:

Native American chestnuts were found by Desoto’s expediti on in 1520 as he traveled the Appalachian Mountains. The chestnuts have four important nut

- bearing species and includes: the American chestnut that is n ow nearly extinct due to chestnut blight ( Endothia parasitica ), introduced into North America in the 18 00's; this fungus girdles and kills trees. Trees planted outside the native range (Midwest and west coast) escape the disease and live to maturity. In the eastern U.S., this species is now an under story shrub, sprouting from the base then dying back whe n the disease becomes severe. Nuts are relatively small (3

- 12 g), but said to have the best flavor of the four species. The Chinese chestnut is now the most important species in terms of commercial production. They are small, spreading trees in cultiv ation, reaching 40

- 50 ft in height, and are the most tolerant species in terms of chestnut blight. Nuts are medium

- large sized weighing 10

- 30 g. This is a larger, straighter growing tree (to 100 ft), better for

timber than others. Nut size is medium

- large (10

- 25 g); quality is variable among cultivars, from sweet to astringent, and is somewhat susceptible to chestnut blight. The Japanese chestnut is a small tree (to 40 ft), often with multiple trunks, cultivated by the Japanese for over 2000 years . It has the largest nuts of Castanea spp. (30 g), but they are bland, astringent, and difficult to remove the kernel covering, but are highly resistant to chestnut blight. There are hybrids of the chestnuts being developed to be chestnut blight

tolerant

.

Chinquapin:

Chinquapins are a group of chestnut species distinguished by having only one nut per bur. Several species are native to the southeastern US. Taxonomically, these species are placed in the Balanocastanon section within the genus Castane a , whereas the

chestnuts of commerce are in the Eucastanon section. Some of these species are the Allegany Chinquapin native to S.E. U.S. from Virginia south, the Ozark Chinquapin native to Arkansas and Missouri, and the Florida chinquapin native to Georg ia, Florida, and Texas. These species are small shrubs or trees (6

- 15 ft) that resist blight by sprouting prolifically and bearing fruit at a young age. The nuts are small, but sweet and nutty flavored and excellent wildlife food.32

Coconut:

The or igin of the coconut palm is obscured by the ability of the fruit to disseminate the species naturally over distances of thousands of miles. Coconuts can float on the ocean for months and still germinate when beached, so they may have arisen anywhere

betwe en the eastern Indian and western Pacific oceans. Prior to the age of discovery, coconuts were dispersed from east Africa to the Pacific coast of Panama. Coconuts provided the only source of food and water on many of the atolls across the equatorial

Paci fic, and the natural distribution of coconut may have influenced the initial colonization of the region. It is clear that there were no coconut palms along the east coast of the Americas, western Africa, or the Caribbean prior to European exploration in

t he sixteenth century. Today, the coconut is distributed pan tropically , and even reaches

extra

- tropical areas such as southern Florida and the Bahamas. Coconut palms have been used since ancient times as a source of food, fiber, fuel, water, and shelter, and many of these uses are still important today. Coconut oil was one of the first, if not the first plant oil to be used by humans, and was the leading vegetable oil until 1962 when eclipsed by soybean oil. Unlike many tropical fruits, coconuts are sti ll grown largely by small landholders instead of on large plantations, although plantations are becoming more popular.

Coquito nut:

When the Spanish explorers first entered central Chile in the early 16th century, they found literally millions of Coq uito nut or Chilean wine palms spread over valleys and slopes throughout much of the coastal ranges. Isolated as this area was from the other Spanish colonies, the conquistadors quickly learned from the indigenous populations that these palms had a variet y of valuable uses. The most important of these at the time was to produce large quantities of a sugary liquid from the collection of palm sap. This syrup could be used directly as a sweetener, a use that continues today, or allowed to ferment to produce an alcoholic beverage. It is this latter use that gave rise to the common name for the palm, although this use is rare today. The palm seeds are

called coquito nuts a re the edible nut, and the pinnately compound palm fronds were widely used by the indig enous peoples of central Chile as a thatch for constructing

shelters.

Dika nut:

The dika nut is distributed throughout a vast swath of western tropical Africa, from Senegal to Angola, and is a part of the diet. Dika is a large, deciduous tree native to tropical West Africa and reaching up to 40 m (131 ft) in height. The trunk is often buttressed up to 3 m (9.8 ft) high, and may be more than 1 m (3.3 ft) in diameter. In the southwestern corner of its range, from Nigeria to Angola, the fruits are eate n. However,33

in the main production areas from Senegal to Uganda, the major food by far is the seed. Despite so far international obscurity, dika is an important resource by providing food and income to rural communities in almost twenty countries. In se veral countries such as Cameroon, Nigeria, Gabon, and Equatorial Guinea, for instance it is one of the most widely sold of all forest products. Millions count on it for cash during the harvest season. Throughout its native range the tree providing these valued fruits and seeds is among the most appreciated natural resources and when forests are cleared dikas are universally left untouched. In Africa the fruit is a tiny resource compared to the seed. Each year harvesters gather “dika nuts” by the thousan ds of tons. The hard round balls, which look something like smooth walnuts, must be cracked open to get to the edible part. The

kernels found inside have the texture normal to nuts and can be eaten raw or roasted.

Hazelnut:

The cultivated hazelnut i s native to Europe and Asia Minor, preferring regions with mild, moist winters and cool summers. For this reason, most production is located near large bodies of water at mid latitudes in the Northern Hemisphere (along the Black Sea in Turkey, the Atlanti c coast in France, the Willamette Valley in Oregon). Hazelnut production failed initially in the eastern U.S. due to eastern filbert blight ( Anisogramma

anomala ) a fungal disease which attacks young shoots first, but later invades older wood, girdling and killing the trees and entire orchards. In the 1970's, it was found in the Pacific Northwest, where it threatens production. In 1983 the Oregon industry decided to adopt the name “hazelnut” for this crop rather than filbert to avoid confusion in the

mark etplace with other countries.

Macadamia Nut:

Both species of macadamia nuts are native to the east coast of Australia, from rain

forest

- like climates; M. integrifolia is more tropical in its requirements than M. tetraphylla . The Hawaiian industry a nd tropical production is based on the former, whereas the small production in southern California is based on the latter. Nuts were brought to Hawaii and California in the late 1800's, but only the Hawaiians developed nut culture, whereas the Californian s used it initially as an ornamental plant.

Pecan:

Pecan is the most important native North American orchard species in terms of acreage. Pecans were used by Indians at least 8000 years ago in Texas. Crows may have

contributed to the selection and di stribution process before man, since they select thin

shelled nuts and can carry them several miles. Texas had over 600,000 A of native pecans. The first budded trees were produced in Louisiana in the mid

- 1800, and orchards were established throughout th e native range, eastward and westward. The first commercial shipment of pecans originated in Georgia in 1917, when orchards were34

already producing high quality nuts graded according to size and color. Georgia has since been the leading producer of "impro ved pecans", although collection of pecans from wild trees in Texas and Oklahoma exceeds Georgia's production in some years.

Pine Nut:

While pine trees are common, less known perhaps is the fact that some members of the pine family also bear edible se eds or "nuts". Out of the 100 recognized species of true pines, only a `few produce nuts of sufficient quality and desirable flavor to make them worth eating. Pine nut varieties that have different names are from different species

of Pine trees. Pine nu ts from New Mexico called Pinon nuts are called Pinon or Piñon by Law in New Mexico. Pinon is a name derived from the Spanish word for pine nut. Pinon nuts come specifically from the pine tree species: Pinus edulis . They taste different from

other varie ties. The Pinon pine tree is a two

- needled pine which grows wild in high desert mountain areas of Colorado, New Mexico, Arizona, and Utah. These edible nuts are not to be confused with the "single needle" pine tree from Nevada. The Pinon nut grown prima rily on Indian reservations in the Southwest United States is normally roasted in the shell. Their availability is rather scarce, and the Pinon nut must first be removed from the shell prior to consumption. Pine nut development in North America is

modest in comparison with that in Europe. The Italian pine tree, with superior timber, is larger and grows faster than the stunted Pinon of the southwestern United States. Italian stone pine plantations are well established in Mediterranean Europe, while the A merican

Pinon remains mostly neglected and uncultivated. Worldwide, approximately 100 species of true pines are recognized; of these about a dozen in the Northern Hemisphere produce nuts of sufficiently high quality and desirable flavor to make them worth gathering. The term “pine nut” denotes any of these edible nuts. Other distinctions are made depending upon the geographical are involved. The most common designation for nuts in Europe is “pignolia”, a term which refers to pine nuts of the Italian ston e pine, grown for the most part in Spain, Portugal, Italy, and North Africa. Nuts of a different species called “pinion”, a name derived from the Spanish word for pine nut, are produced

in the western United States. These Pinon nuts come mainly from the P inon pine tree, a

two

- needled pine which grows wild in the states of Colorado, New Mexico, Arizona, and Utah. The pine nut dates from a remote period in time when Hosea (14:8) was a Hebrew prophet who lived during the eighth century B.C. in Israel. Many Biblical scholars believe that this tree was the stone pine and the edible fruits referred to was the pine nut. The ancient Greeks and Romans appreciated the taste of the pine nuts. Archaeologists have found pine nuts among household foodstuffs in the ru ins of Pompeii, destroyed by the violent eruption of Mount Vesuvius in 79 A.D. The Roman Legions carried pine nuts among their provisions, evidenced by pine nut shells uncovered in refuse dumps of Roman encampments in Britain which date from the middle of the first century.

Pistachio:

The pistachio is native to the Asia Minor area, from the islands of the35

Mediterranean in the west to India in the east. It probably developed in interior desert areas, since it requires long, hot summers for fruit matu ration, is drought and salt tolerant, and yet has a high winter chilling requirement. The pistachio has been considered a delicacy since the beginning of recorded history, and has been cultivated for centuries throughout its native range. It was introduce d to California in 1854, but commercial plantings did not develop until 1970 with only 21,000 A in 1979. Today, pistachios are grown primarily in California, although there is some production in Arizona, New Mexico, and western Texas.

Walnut:

Walnut (Juglans regia) has its origins in Eastern Europe, Asia Minor, and points eastward to the Himalayan Mountains. However, there are native Juglans in North, Central, and South America, Europe and Asia. Though native to Europe, it probably was

not utilized there until improved forms were imported from Persia. Romans spread cultivation throughout southern Europe. The species came to the new world with English settlers and to California via missionaries. The settlers called them English walnuts to distingui sh them from the Native American black walnut. Black walnuts are native to the eastern half of the U.S. and southern Ontario. Today, the English walnut production is almost entirely located in the San Joaquin/Sacramento valleys of California, where over 5,000 growers and 52 processors make up a highly organized and productive industry. They are also grown in North, Central, and South America as well as China,

The members of this crop group have similar uses, and all are consumed after maturity or cons umed cooked or roasted in various recipes including salads, meats, and cookies. Some of these tree nuts also have medicinal properties. Many of the tree nuts from the same botanical family with similar biological and cultural aspects suggests they

should also encounter similar pest problems and hence have similar needs for pest control products in similar use patterns. All of these commodities except for betel nut were

found to have similar characteristics and uses to become a member of the Tree nut grou p. The most widely grown tree nuts in the U.S. almond and pecan with largest acreages and geographical distribution in the case of pecans will continue to be the representative commodities for the Tree nut crop group.

GROWTH AND DEVELOPMENT OF THE TREE NUT CROPS

Understanding how the tree nut crops grow and develop is a key part of developing a pest control strategy for optimum nut yield and quality and a helpful reference for analysis of residue field trials by EPA scientists. Proper timing of pestic ide applications, based on crop growth stage and pest growth cycle can improve a product’s efficacy and prevent crop injury and yield losses. Pesticide labels often use crop growth stages and codes to identify when to apply a pesticide, as well as the tre e nuts. State Extension pest control recommendations and spray schedules are based on these distinct growth stages Tables 2

- 5. Rarely, if ever, will a grower need to apply treatments at all36

of the key growth stages shown for a tree nut because of pest scouting. The number, distribution, and content of needed treatments will vary between the major tree nut growing regions of the world and within any given region and are dependent on pest pressures which reduce the yield, quality, and marketability of th e fruit.

Some of the internationally recognized growth stages for the tree nuts are listed as BBCH Codes ( Biologische B undesanstalt, B undessortenamt and Ch emical industry) and adapted from Ag Analytical Services (Tables 1 and 2 for almond). They are b ased on the principal growth stage such as leaf development and flowering and list a standard BBCH Code for each stage as well as a description of each code. The growth stages are essential for identifying the propose timings to scout pest problems for co ntrol of these pests and for applications of pesticides as part of an integrated pest management program (IPM). The BBCH does not have a separate list for tree nuts but the stone fruit growth stages are fairly similar and we were able to develop the growt h stages for almonds. Growth stages for pecans, pistachio and walnut are listed in Tables 3, 4, and 5, respectively.

Table 1. Selected Principal Growth Stages for Tree Nut Group such as for Almond). BBCH Identification Codes (Adapted from Meir, 1994 a nd Serve

- Ag Analytical Services, 2007).

BBCH Code Principal Growth Stage General Description

00 Sprouting/Bud development Dormancy: leaf buds and the

thicker inflorescence buds closed and covered by dark

brown scales.

01 Sprouting/Bud development Begi nning of bud swelling (leaf buds); light brown scales visible, scales with light colored edges.

10 Leaf development First leaves separating: green scales slightly open, leaves emerging.

19 Leaf development First leaves fully expanded.

31 Shoot develo pment Beginning of shoot growth; axes of developing shoots

visible.

39 Shoot development Shoots about 90% of final length.

51 Inflorescence emergence Inflorescence buds swelling: buds closed, light brown scales

visible.

53 Inflorescence emergence Bud burst, scales separated, light green bud sections

visible.

54 Inflorescence emergence Inflorescence enclosed by light green scales, if such scales are37

BBCH Code Principal Growth Stage General Description
formed, since not all cultivars

form them.

57 Inflorescence emergence Sepals open: petal tips visible ; single flowers with white or pink petals (still closed).

59 Inflorescence emergence Most flowers with petals forming a hollow ball called

popcorn stage.

60 Flowering First flowers open.

61 Flowering Beginning of flowering: about 10% of flowers open

6 2 Flowering About 20% of flowers open

63 Flowering About 30% of flowers open

64 Flowering About 40% of flowers open

65 Flowering Full flowering: at least 50% of flowers open, first petals falling.

67 Flowering Flowers fading: majority of petals fallen , ovary growing,

first leaves unfolded.

69 Flowering End of flowering, all petals

fallen.

71 Development of Fruit Ovary growing: fruit fall after flowering.

72 Development of Fruit All petals fallen, end of flowering, first leaves fully expanded, shoot s > 10 cm long, shuck fall stage.

75 Development of Fruit Fruit about half final size. Fruit growth interrupted, stone

becomes hard and cannot easily be cut out. Stone hardening stage.

76 Development of Fruit Fruit about 60% final size

77 Development o f Fruit Fruit about 70% final size

78 Development of Fruit Fruit about 80% final size

79 Development of Fruit Fruits about 90% of final size.

81 Maturity of fruit Fruit at full size. Beginning of fruit coloring.

85 Maturity of fruit Coloring advanced.

87 Maturity of fruit Fruit ripe for picking

89 Maturity of fruit Fruit ripe for harvest and consumption, fruit has typical

taste and firmness. Harvest

stage.38

BBCH Code Principal Growth Stage General Description

91 Senescence, beginning of dormancy Shoot growth completed; foliage still fully green.

93 Senescence, beginning of dormancy Beginning of leaf fall.

95 Senescence, beginning of dormancy 50% of leaves discolored or

fallen

97 Senescence, beginning of dormancy All leaves fallen.

Tree Nut Growing Season Growth Stages for Almond, Pecan, and Wa lnut:

The typical growth stages and timing for almonds are listed in Table 2, while the typical growth stages for pecan listed in Table 3, pistachio in Table 4, and walnut in Table 5. Most of the growth stages are fairly similar based on when nuts are maturing

after bloom.

Table 2. Typical Almond Growth Stages (Serve

- Ag Analytical Services, 20070. Crop Growth Stage J

A

N F

E

B M

A

R A

P

R M

A

Y J

U

N

E J

U

L

Y A

U

G S

E

P

T O

C

T N

O

V D

E

C

Dormant X X X

Bloom

– Petal fall X X

Post bloom X X Shell hardening X Hull split X

Table 3. Typical Pecan Growth Stages ( www.tifton.uga.edu/uga.pecan

, http://aces.nmsu.edu/pubs/_h/h

- 618.pdf). Crop Growth Stage J

A

N F

E

B M

A

R A

P

R M

A

Y J

U

N

E J

U

L

Y A

U

G S

E

P

T O

C

T N

O

V D

E

C

Dormant X X X X

Bud break X X X

Pollination X Nut elongation and expansion X X X Shell hardening X X Kernel development X X Shuck split X39

Pec ans after maturing and harvesting begin another growth stage cycle. These growth stages are:

(1). Dormant Stage : Pecan trees are dormant during the winter months, which is like a rest period for the tree. During dormancy, the tree doesn't appear to be growing, but many important things are happening. In order for pecan trees to produce pecans during the next year they need at least 200 chill hours during this period. (A chill hour is an hour where the temperature is between 32F and 45F).

(2). Bud

- br eak and Pollination : During late April and early May, pecan trees pollinate. Pecan trees are monoecious, which means they have separate male structures (catkins,) and female flowers (pistillate). The catkins are long, golden tassels that produce pollen.

T he female flowers receive the pollen and initiate the nut growth. During this time, the pecan grower scouts the trees to make sure they are free of problems with insects and

diseases.

(3). Nutlet Stage : In this stage the y oung pecans continue to grow i n June and July and

are called nutlets.

(4). Nut Fill Stage : Pecans mature during the nut

- fill stage in September and early October. Some varieties of pecan trees produce many small clusters of pecans, and others produce fewer large clusters.

(5). Shu ck

- Split Stage : After a 200

- day growing period, the pecan shuck opens, allowing the nut to drop.

Table 4 Typical Pistachio Growth Stages (Crane J.C., Bradley M., Nelson M, Growth of seeded and seedless pistachio nuts. J Am Soc Hort Sci. 1971. 96:80). Crop Growth Stage J

A

N F

E

B M

A

R A

P

R M

A

Y J

U

N

E J

U

L

Y A

U

G S

E

P

T O

C

T N

O

V D

E

C

Dormant X X X X

Bud swell

- Bloom X Shoot growth/foliage X Hull expansion X Shell hardening X

Nut fill X Shell split X X

Nut maturation X40

Table 5. Typical Walnut Growth Stages
(http://extension.oregonstate.edu/catalog/html/em/em8907/#t2) Crop Growth Stage J

A

N F

E

B M

A

R A

P

R M

A

Y J

U

N

E J

U

L

Y A

U

G S

E

P

T O

C

T N

O

V D

E

C

Dormant X X X Leaf growth X X

Bloom X X Kernel growth X X Husk split X X X

CLIMATE AND SOILS AFFECT TREE NUT ADAPTATION TO CERTAIN

REGIONS:

Tree nuts vary some are northern temperate deciduous crop that needs a chill period

for it to e nter dormancy before producing the next crop in the summer and fall such as the chestnut and walnut and some prefer a Mediterranean climate like almonds and some are tropical such as the coconut. Specific climatic and soil preferences for the tree nuts ar e discussed below.

The African nut tree prefers a moist climates, and is often found in the rainforest. It seems to prefer forest edges and semi

- deciduous moist forests, although it can be found in dry, wooded savanna regions as well. It is typically gr own from seed, although the germination rate is poor. Clonal reproduction techniques are being investigated to make

cultivation of this tree more desirable for farmers.

Almonds prefers a d eep, loamy, well

- drained soils, but will tolerate poor soils, and requires a mild winters, and long, rainless, hot summers with low humidity. It is well adapted to mild winter and dry hot summer conditions. It is the earliest temperate tree crop to bloom. It must be cross pollinated in orchard conditions and need ins ect pollinators.

Candlenut prefers a well drained soil with a pH of 6.0

– 6.5, and long hot summers.

Cashews are t tolerant of sandy, poor soils, with a soil pH 4.5

- 6.5, but are intolerant of poor soil drainage. They are drought tolerant if soils are deep, and can grow in areas receiving only 30

- 50" of rain per year, but they have no cold tolerance. High rainfall and humidity favor diseases that destroy the flowers and reduce fruit set.

The coconut is adaptable to many soil types, and can be grown inland provided adequate drainage and pH between 5.0 and 8.0. At below 1000 ft elevation, frost

- free subtropical areas and climates with extended dry seasons provided irrigation, but grow best in areas with mean temperatures of 70

- 80° F. The cro p needs 40

- 60" of water per41

year, and perform better in high humidity, supremely tolerant of hurricane force winds and driving rain, and rarely uprooted and it tolerate salt spray better than most crops, and can tolerate brief flooding associated with tr opical storms.

The hazelnut prefers a deep well drained soil with an optimum pH of 6.5.

Macadamia nuts prefer a d eep, well

- drained, soil with a pH of 5.5 to 6.5 are best, but trees are grown on a wide variety of soils. In Hawaii, they grow well on l ava rock

soils. Although tropical trees, macadamias tolerate mild freezing (28

- 32 ° F), and do not tolerate excessive heat. In Hawaii, cool ocean breezes allow cultivation at sea level, but inland in the tropics, trees must be grown at 1500

- 3500 ft. T hey have no chilling requirement, but a seasonal change in temperature may help to synchronize bloom.

Pecan trees prefer light to medium textured soils with a pH 5.5

- 6.5, but can be grown on soils with higher clay content and higher pH. Pecans perform equally well in arid and humid climates, provided with adequate soil water and disease management, but disease pressure is worse in humid climates. The commercial "pecan belt" is the tier of southern states stretching from Georgia to Arizona. Pecans for m natural forests along river banks of the Mississippi valley in the south

- central US, so a warm temperate climate is optimal for growth. Its cold hardiness is fair; but young trees may be killed outright by temperatures of

- 5 to 0°F. To reduce the poten tial for frost or freeze damage, select a site at a higher elevation or one on a gradual slope. Do not plant in low areas where cold air tends to settle; these areas are frequently referred to as frost pockets. Nuts do not "fill" properly in northern are as, due to inadequate temperatures for photosynthesis during the critical kernel growth period in autumn. Most pecan cultivars require growing

seasons of 180

- 220 days with a variation of cultivars from 140 to 210 days. North

Carolina is on the northern fringe of the commercial pecan

- producing region of the United States. The limiting factor is the length of the growing season. The best area is the coastal plain, extending to the eastern edge of the piedmont. The selected site should

have well

- drained , deep soils (4 to 6 feet) with moderate soil

- moisture

- holding capacity. Pecan trees are native to river valley soils and have a relatively high water requirement. They do best on sandy loam soils but also can be grown on heavier soils such as clay

loams i f the soils are well drained. In areas where the soil is lighter and relatively dry, irrigation is required.

Pine nuts are produced on many soil s with a pH ranging from 4

– 9, and they prefer a Mediterranean climate with rainfall ranging from 400

– 800 mm.

The pistachio produces best on deep, well

- drained loams with high lime content and soil pH. Pistachios are more tolerant of alkaline (Na+) and saline soil than most tree crops. Soils with a history of Verticillium (poorly drained, old cotton land) should be avoided or fumigated prior to planting. They are truly Mediterranean in adaptation; they thrive in the hot, dry, desert

- like conditions, such as the central California valley. Trees are highly disease prone, and rain or even high humidity duri ng the spring and summer promotes diseases. Arid climates with rather cool, prolonged winters are needed for42

pistachios. Cold hardiness ranges around 5

- 15° F in mid

- winter in California, but has been reported to reach 0° F in Iran.

The preferred soil s for the tropical almond are sand, silt, or loams with an alkaline pH. It is most commonly found on coastal plain areas.

The preferred soils for walnuts are deep, well

- drained silt loams with pH 6 to 8, as occur in central valleys of California. ‘Per sian’ or ‘English’ walnuts are best adapted to Mediterranean climates, with dry, hot summers and mild winters, but cold hardiness is a major limiting factor for the walnut. In California, trees are considered cold hardy to temperatures 12

- 15° F. ‘Carpa thian’ cultivars are far more cold hardy and quicker to

acclimate than ‘Persian’ cultivars.

U.S./NAFTA AND WORLD PRODUCTION AND GEOGRAPHICAL

DISTRIBUTION OF THE TREE NUT COMMODITIES:

Proposed members of the Tree nut crop group find widespread distrib ution throughout the world. Table 6 provides a list of the hectares and production in metric tons from various countries that are members of the International Crop Grouping Consulting Committee (ICGCC) as countries that grow almond, betelnut, Brazil nut, cashew, chestnut, coconut, hazelnut, pistachio, and walnut. T he world total hectares for almond, betelnut, Brazil nut, cashew, chestnut, coconut, hazelnut, pistachio, and walnut

h ave increased from 17,420,730 ha in 1997 to 19,961,492 ha in 2007, and the t otal production of these nuts has increased from 57,174,933 metric tons in 1997 to 72,519,897 metric tons in 2007 ( FAO 2007 )

. S ome “minor” tree nut commodities like the chestnut, pine nut, and okari nut are also becoming more popular. Worldwide, coconut is the most harvested tree nut at 55.6 % of the hectares followed by cashew at 19.8 % and almond at 8.9 %, and walnut at 3.6 %. The average yields for the tree nuts is 48 Mt/ha for Brazil nut, 5.5 Mt/ha for coconut, 3.4 Mt/ha for chestnut, 3.3 Mt/ha for w alnut and 1.2 Mt/ha for almonds. Africa is the predominant tree nut producing regions for cashews, while Asia is the leading region for betelnut, chestnut, hazelnut, pistachio and coconut. Europe is the leading region for hectares harvested for almonds a t 44.3 %. The United States grows approximately 14 % of the total world almond hectares, 1.8 % of the hazelnuts, 7.6 % for pistachio and 12 % for walnuts according to FAO. In production the U.S. leads the world in almond production (Mt/ha) at 50 % and is a leader in pistachio production at 21 % and walnuts at 16.8 %. Spain and Portugal each produce 30

– 40 % of the world’s pine nuts.

Table 6. M ajor Tree Nut Production in 2007, updated June 23, 2009 (FAOSTAT 2009, http://faostat.fao.org/site/567/default.aspx

.

Countries/Regions Almond, with

shell Betel nut

(arecanut) Brazil nut,

with shell Cashew nut,

with shell Chestnut

Africa 438,407 ha

221,987 tonnes No data

90 tonnes No data

5,200 tonn es 1,670,350 ha

1,293,845 tonnes 100 ha

140 tonnes

Central America 0 ha No data No data 7,328 ha No data43

Countries/Regions Almond, with

shell Betel nut

(arecanut) Brazil nut,

with shell Cashew nut,

with shell Chestnut

0 tonnes No data No data 9,138 tonnes No data

Caribbean 7,395 ha

10,900 tonnes No data

No data No data

No data 5,900 ha

1025 tonnes No data

No data

South America No data

No data No data

No data 1,550 ha

69,281 tonnes 7395 ha

10,900 tonnes 40,190 ha

55,800 tonnes

Asia 279,794 ha

392,353 tonnes 811,986 ha

971,601 tonnes No data

No data 537,835 ha

2,131,366 tonnes 238,405 ha

1,090,611

tonnes
Australia 15,000 ha

18,024 tonnes No data

No data No data

No data No data

No data No data

No data Europe 789,931 ha

385,570 tonnes No data

No data No data

No data No data

No data 87,153 ha

115,550 tonnes

United States 248,890 ha

1,043,266 tonnes No data

No data No data

No data No data

No data No data

No data

World Total

- 2007 1,779,417 ha
2,072,100 tonnes 811,986 ha

971,691 tonnes 1,550 ha

74,431 tonnes 3,953,175 ha

3,578,399 tonnes 366,448 ha

1,262,101

tonnes
World Total

- 1997 1,569,305 ha 1,563,990 tonnes 467 ,694 ha

583,623 tonnes 1,220 ha

51,506 tonnes 2,826,789 ha

1,334,327 tonnes 307,012 ha

790,348 tonnes Note: This table reports only the tree nuts included on the FAO website.

Table 6. M ajor Tree Nuts Production in 2007 (continued):

Countries/Regions Coconut Hazelnut (Filbert) with

shell Pistachio Walnut, with shell

Africa 667,681 ha
1,732,607 tonnes 100 ha

140 tonnes 16,510 ha

1,265 tonnes 9,975 ha

40,776 tonnes

Central America 199,595 ha
1,309,182 tonnes No data

No data 36 ha

10 tonnes 57,509 ha

7 9,162 tonnes

Caribbean 514,938 ha
3,922,501 tonnes No data

No data No data

No data No data

No data

South America 336,638 ha
3,255,055 tonnes No data

No data No data

No data 19,641 ha

35,525 tonnes

Asia 9,270,785 ha 52,614,784 tonnes 501,099 ha

617,244 t onnes 537,547 ha

396,950 tonnes 389,521 ha

952,700 tonnes

Australia No data

No data No data

No data No data

No data No data

22 tonnes Europe No data

No data 100,858 ha

165,711 tonnes 88,500 ha

11,000 tonnes 155,785 ha

324,979 tonnes

United States No dat a No data 11,370 ha

32,660tonnes 46,136 ha

108,598 tonnes 88,220 ha

290,300 tonnes

World Total

- 2007 11,106,109 ha
61,504,133 tonnes 613,427 ha

815,755 tonnes 608,729 ha

517,823 tonnes 720,651 ha
1,723,464 tonnes
World Total

- 1997 10,834,952 ha 50,537,1 92 tonnes 492,684 ha

635,068 tonnes 387,019 ha

544,102 tonnes 534,055 ha 1,134,777 tonnes

Note: This table reports only the tree nuts included on the FAO website.44

In the U.S. tree nuts are widely consumed with the per capita consumption in 2007

for th e following tree nuts reported as almond at 1.20 lb followed by other tree nuts that

combined data for Brazil nut, cashew, chestnut, and pine nuts at 1.10 lb, coconut consumption is at 0.58 lb, pecan at 0.43 lb, and both pistachio and walnut at 0.23 lb (Ta ble 7). Consumption of almond and pistachio is increasing since 1997 while coconut, macadamia nut and pecan have not increased. With the beneficial effects of some nuts such as almonds, pistachio, and walnut lowering cholesterol consumption should increa se in the future.

Table 7. Tree nuts on a shelled basis (lb/capita/year): Per capita consumption (USDA Economic Research Service, ERS, 2009

.

Season* Almond Coconut

** Hazelnut Macadamia

nut Pecan Pistachio Walnut Other

Tree

Nuts***
2007 1.20 0.58 0.04 0.10 0.43 0.23 0.23 1.10

2006 1.00 0.56 0.08 0.13 0.44 0.13 0.53 0.97

2005 0.62 0.57 0.02 0.13 0.44 0.19 0.42 0.88

2004 0.89 0.54 0.07 0.15 0.49 0.26 0.53 1.10

2003 1.12 0.59 0.06 0.12 0.46 0.19 0.50 1.00

1997 0.56 0.57 0.07 0.11 0.45 0.14 0.36 0.53 * Season begins in August of first year shown for almonds and walnuts, September for pistachios, October for pecans, and July for hazelnuts.

** Coconut is on a desiccated basis. *** Other tree nuts include Brazil nut, cashew, chestnut, and pine nut.

Bas ed on the USDA CSFII 1994

– 1996, 1998 survey, using two day individual consumption for determined tree nut consumption (g/day) is listed in Table 8. The highest consumption is for almond at 0.29 g/day, coconut oil at 0.404 g/day, walnut at 0.189 g/day, a nd coconut dried at 0.116 g/day. The highest babyfood consumption is for coconut oil at 0.0974 d/day. The dietary value of some of the tree nuts, per 100 gram edible portion is listed in a separate report entitled Part 2 Dietary Value of the Tree nuts.

Table 8. Consumption of the Tree Nuts Based on USDA CSFII

1994

– 1996, 1998 survey

. COMMODITY CONSUMPTION (g/day)

Almond 0.293
Almond, oil 0.000504

Brazil nut 0.0116

Butternut 0.0000000464

Cashew 0.0164

Chestnut 0.0041045

COMMODITY CONSUMPTION (g/day)

Coconut, dried 0 .116
Coconut, meat 0.0255
Coconut, meat

- babyfood 0.000181
Coconut, milk 0.0652
Coconut, oil 0.404
Coconut, oil

- babyfood 0.0974

Hazelnut 0.0213

Macadamia nut 0.0182

Pecan 0.0906

Pine nut 0.0231

Pistachio 0.0649

Walnut 0.189

IMPO RTS/EXPORTS OF THE TREE NUTS :

Despite the U.S. being a major producer of tree nuts (Table 9) significant amounts of some of the tree nuts are imported. The amount of a commodity can vary widely from year to year based on differences in U.S. production, weather effects, and consumer demand. There are no reported imports of almonds, betel nuts, walnuts, or any other tree

nuts to the United States.

The most widely imported tree nut to the U.S (Table 9 in 2008 is the cashew at 120,504 MT, followed by co conut at 73,241 MT and then the pecan at 40,124 MT. In 2008, over 10,585 MT of Brazil nuts was imported to the U.S (USDA Foreign Agriculture Trade Statistics, FATUS) with 48 % coming from Bolivia , 26 % from Brazil, and 23 % from Peru. Approximately, 120 ,505 MT of cashew was imported from Vietnam at 41.3 %, India at 33.3 % and Brazil at 17.9 %. Forty

- six % of the chestnuts were imported from China followed by Italy at 40 % and South Korea at 10.7 %. Coconut meat imports came from Philippines (41.9 %), Th ailand at 25.8 %, and Dominican Republic at 14.7 % and Mexico at 11.6 %. Of the 7,071 MT hazelnuts imported over 83 % were from Turkey followed by Italy at 6 % and Canada at 5 %. Macadamia nuts were imported from South Africa at 29.7 %, Australia at 28.7 % and Kenya at 11 % and Guatemala at 10 %. Almost all the 40,124 MT of pecans were imported from Mexico (99.3 %). Pistachio nuts were imported from Turkey at 35.2 %, Iran at 22.8 %, Italy at 14.0 %, Hong Kong at 10.9 %, and Canada at 6.5 %. Over 80 %

of the pine nuts imported to the U.S. are from China.

Table 9. U.S. Tree Nut Imports for 2007

- 2008. (USDA NASS, 2008 Fr Nt 1

- 3, USDA ERS, FTS

– 2007, USDA FATUS, 2008).

Tree Nut 2007 (MT) 2008 (MT)

Brazil nut 13,262 10,58446

Tree Nut 2007 (MT) 2008 (MT)

Cashew 135,500 120,504

Chestnut 4,056 4,145
Coconut, meat 79,550 73,241

Hazelnut 5,742 7,071

Macadamia nut 6,996 7,301

Pecan 37,483 40,124

Pistachio 947 700

According to the USDA ERS, U.S. imports of tree nuts during the 19 90s and through the 2000s were up sharply from the 1970s and 1980s due to increased demand. Almost half the volume of tree nut imports (excluding coconut meat) was cashew nuts, followed by pecans (15 %) and Brazil nuts (6 %). In recent years, however, Vi etnam has become a more visible player in the U.S. cashew market. Vietnam is now the top supplier of cashew nuts to the United States, accounting for over one

- third of total import volume, up from less than 10 % in the mid

- to late

- 1990s (Pollack and Perez , USDA ERS).

The U.S. is also a major exporter of tree nut commodities (Table 10). In 2008,

there were over 448,333 MT of almonds exported from the U.S. to Spain at 15 %, Germany and India at 11 %, Hong Kong at 8 %, followed by Japan, Canada, and Unite d

Arab Emirates al at 5 % (USDA Foreign Agriculture Trade Statistics, FATUS)

. Approximately 52,385 MT of pecans were exported in 2008 to Mexico at 37.8 %, Hong Kong at 30.3 %, Canada at 8.3 %, and United Kingdom and Netherlands at 5 %. For pistachios ove r 121,337 MT were exported with Belgium

- Luxembourg at 18 %, Hong Kong at 12 %, China at 11 %, Netherlands at 10 % and both Germany and Canada at over 6 %. Walnuts had over 195,047 MT exported from the U.S. to Spain at 14.9 %, Italy at 12.6 %, Germany at 11.2 %, Turkey at 9.6 %, Japan and Canada both over 7 %, Mexico at 6.6 %, and South Korea at 5.8 %.

Table 10. U.S. Tree Nut Exports for 2007

- 2008. (USDA NASS, 2008 Fr Nt 1

- 3, USDA ERS, FTS

– 2008, USDA FATUS, 2008).

Tree Nut 2007 (MT) 2008 (MT)

Alm ond 411,264 448,333

Hazelnut 24,733 22,908

Pecan 35,759 52,385

Pistachio 75,133 121,337

Walnut 95,024 95,047

According to the USDA ERS, the U.S. leads the world in the production and export of tree nuts producing more than one

- tenth of the world's tree nuts and about a quarter of world exports. Exports of tree nuts averaged over 40 % of U.S. tree nut supplies during the 2000s, up slightly from the 1990s and more than half the average share during the

1980s. Almonds accounted for ove r 60 % of tree nut export volume in recent years, with47

pistachio over 16 %, and walnuts over 13 %, respectively, of total tree nut exports (Table 10). The major export destinations for U.S. tree nuts are Spain, Germany, and the Netherlands in the European Union; Canada and Mexico; and Hong Kong, India, Japan, South Korea, Vietnam, China, and Taiwan (Pollack and Perez, USDA ERS).

The marketing season for exporting and importing tree nuts for 2008

– 2009 is

shown in Table 11. Once the tree nut is harvest ed the season for exporting/importing seems to last a year for example almonds are exported from August

- July and Brazil nuts are imported from January

- December.

Table 11. The U.S. Export and Import Marketing Season for Tree Nuts (Shelled Basis) 2008

– 2009.

Commodity Export Import

Almond August

– July

- Pistachio September

- August

- Pecan October

- September October

- September

Walnut September

- August

- Brazil nut

- January

- December

Cashew

- January

- December

Pine nut

- January

- December

U.S. TREE NUT PRODUCTION AND GEOGRAPHICAL PRODUCTION:

The tree nut p roduction in the U.S. is based on the USDA 2007 Agricultural Statistics, FAO Statistics, 2008 USDA ERS 2008 Noncitrus Fruits Summary, USDA NASS Crop Production, 2008 2009, and the U .S. Agricultural Census, 2007: The planted acreages for the tree nuts in the United States are listed in Table 12 and according to the 2007 AGCensus tree nuts (almond, hazelnut, macadamia, pecan, and walnut) were grown

on over 1,849,539 A which was an inc rease of 136,807 A from 2002. Tree nut yields range from 300 lb/A for pecan to 3,650 lb/A for pistachios (Tables 12 and 13). Tree yields can vary from year to year because some of the trees have alternate bearing years. Tree nut bearing acres for 2002

- 2007.are shown in Table 14 and closely follow those state distribution from the total bearing plus nonbearing acres. The representative commodities for the tree nut group in 2007 comprise over 73.2 % of the total tree nut

acres with almond at 42.7 % and pecan at 31.5 %.48

Table 12. U.S. Tree Nut Planted Acres in 2002 and 2007 and Yield/A for Each Crop. ( USDA AG Census, 2002, 2007 (USDA NASS, 2008, USDA Agricultural Statistics, 2008, USDA, NASS, Noncitrus Fruits and Nuts Summary ). Commodity 2002

Acrea ge U.S. 2007

Acreage

U.S. 2002

Yield Per Acre (lbs) 2007

Yield Per Acre (lbs) Change in

Acreage (2002

- 2007)

Almond 696,635 790,245 2,000 2,260 + 93,310

Chestnut NA 3,355 3,000 3,000

– 5,500 -

Hazelnut 33,801 34,465 800 2,100 + 664

Macadamia nut 18,692 17,811 2,980 2,400

- 881

Pecan 545,344 581,809 1,500 1,500 + 36,465

Pistachio 125,569 154,103 3,650 3,650 + 28,534 Walnut, English 292,691 267,751 1,340 1,490

- 24,94 0 Total Reported

Tree Nut Acres 1,712,732 1,849,539

- - + 136,807

Notes:

NA

– data not available.

Table 13. U.S. Tree Nut Yield Pounds Per Acre, 2002

- 2007 . ( USDA AG Census, 2002, 2007 (USDA NASS, 2008, USDA Agricultural Statistics, 2008, USDA, NASS

, Noncitrus Fruits and Nuts Summary ).

Tree Nut Yield Pounds Per Acre, U.S., 2002

- 2007

Year Almond Hazelnut Macadamia Pecan Pistachio Walnut

2002/03 2,000 523 2,980 NA 3,650 2,680

2003/04 1,890 1,053 2,980 NA 1,350 3,060

2004/05 1,760 961 3,170 NA 3,730 3,040

2005/06 1,580 710 3,000 NA 2,700 3,300

2006/07 1,920 1,292 3,870 1,500 2,130 3,200

2007/08/ 2,260 1,008 2,400 672* 3,650 2,980

Pec an yields can range from 300

– 1,700 lb/a depending upon the age of the tree.

Almond bearing acres for 2007 was 615,000 with > 99% from California (Table 14). Over 99% of the almonds in California are produced in the San Joaquin (80 %) and

Sacramento Valleys (15 %). Other regions of the state account for <1% of the almond production.

Table 14. U.S. Tree Nut Bearing Acres 2002

- 2007 . ( USDA AG Census, 2002, 2007 (USDA NASS, 2008, USDA Agricultural Statistics, 2008, USDA, NASS, Noncitrus

Fruits and Nuts Summary ).49

Tree Nut Bearing Acreage, U.S., 2002

– 2007*

Year Almonds Hazelnut Walnut Macadamia Pistachios

2002/03 545,000 29,200 210,000 17,800 83,000

2003/04 550,000 28,000 213,000 17,800 88,000

2004/05 570,000 28,400 214,000 17,800 93,000

2 005/06 580,000 28,300 215,000 18,000 105,000

2006/07 585,000 28,200 216,000 15,000 112,000

2007/08/ 615,000 28,100 267,751 16,732 117,044 * Pecan bearing acres in 200 7 is 266,081.

Over 54 % of the chestnut production is from four states: Michigan, Ohio, Oregon, and Florida (Table 15).

Table 15. U.S. Production of Chestnut (USDA AG Census, 2007 (USDA NASS, 2008, USDA Agricultural Statistics, 2008).

STATE BEARIN G ACRES (A) STATE PERCENT OF

TOTAL U.S. CHESTNUT

ACRES Michigan 492 23.7 %

Ohio 227 10.9 % Oregon 207 10.0 %

Florida 203 9.8 % Virginia 96 4.6 % Pennsylvania 84 4.0 %

New York 55 2.7 %

Iowa 48 2.3 % Washington 43 2.1 %

Total 2072

Hazelnut bearing acres were 31,900 with 98.5 % from Oregon and less than 1.5 % from Washington and Minnesota,

Of the 16,732 A of macadamia nuts Hawaii had over 99 % of the bearing acres and

California the rest.

Pecan bearing acres were from Texas at 29.7 %, Ohio at 24.6 % and Georgia at 20.2 % and New Mexico at 7.1 % (Table 16).50

Table 16. U.S. Production of Pecans (USDA AG Census, 2007 (USDA NASS, 2008, USDA Agricultural Statistics, 2008).

STATE BEARING ACRES (A) STATE PERCE NT OF

TOTAL U.S. PECAN

ACRES

Texas 150,426 29.7 %

Ohio 124,553 24.6 % Georgia 102,567 20.2 %

New Mexico 35,746 7.1 %

Alabama 16,055 3.2 %

Arizona 11,950 2.4 % Mississippi 11,321 2.2 %

Missouri 11,117 2.2 %

Arkansas 8,598 1.7 %

Total 506,181

Pine nuts are mainly grown in the southwestern U.S. and 400

– 500 tons (363

- 454

tonnes per year.

There were 117,044 bearing acres of pistachio harvested in 2007 with 98.1 % from California, 1.3 % from Arizona, and 0.4 % from New Mexico.

English walnuts had 267,751 A with California accounting for (98.8 % of the acres followed by Oregon at 0.5 % (Table 17).

Table 17. U.S. Production of English Walnuts (USDA AG Census, 2007 (USDA NASS, 2008, USDA Agricultural Statistics, 2008).

STATE BEARING ACRES (A) STATE PERCENT OF

TOTAL U.S. ENGLISH

WALNUT ACRES

California 264,517 98.8 % Oregon 1,336 0.5

Missouri 117 <0.1 Washington 108 <0.1 Virginia 102 <0.1

Total 267,751

Maps of the harvested acre s for Almonds, pecans, and English walnuts are shown in the below Figures 1

– 3, respectively. Almonds and English walnuts are grown in EPA Residue Field Trial Region 10, while pecans are grown in Regions 2, 4, 6, and 8.51

Figure 1. Map of US Almond Ac res

- 2007

Figure 2. Map of US Pecan Acres

- 2007.52

Figure 3. Map of US Walnut Acres

- 2007.53

Converting tree nut shelled weights calculations from the in

- shelled weights and

visa versa are shown in Table 18. These factors depending on h ow the production data is presented allow one to readily convert to shelled weights of the nuts.

Table 18. Conversion of Tree Nut Shelled Weight from In

- Shell Weight. USDA Agricultural Handbook 697. Tree Nut Commodity Shelled Weight from In

Shelled Wei ght In

- Shelled Equivalent from Shelled Weight

Almond 0.60 1.67

Brazil nut 0.50 2.00

Cashew 0.22 4.55

Chestnut 0.84 1.19

Hazelnut 0.40 2.50 Macadamia nut ( HI) 0.38 2.63

Pecan 0.50 2.00

Pistachio 0.43 2.50
Walnut, Black 0.17 5.88 Walnut, English 0 .40 2.5054

In 2007/08 almonds (Table 19) are the highest producing tree nut at 1,482,208,000 lb, followed by walnut 320,325,000 lb, pecan 287,029,000 lb, pistachio 264,526,000 lb, hazelnut 43,998,000 lb and macadamia nut at 36,000,000 lb.

Table 19. Production (Shelled Basis) of the Tree Nuts . ( USDA AG Census, 2002,

2007 (USDA NASS, 2008, USDA Agricultural Statistics, 2008, USDA, NASS, Noncitrus Fruits and Nuts Summary ).

Production (Shelled Basis)

– All Tree Nuts

1,000 pounds

Season Almond Hazelnut Pecan Walnut Macadamia Pistachios

2002/03 1,146,415 34,192 223,534 323,296 53,000 162,702

2003/04 1,176,393 42,838 245,608 352,363 53,000 113,857

2004/05 1,113,806 43,591 204,746 364,280 56,500 194,254

2005/06 1,024,009 33,218 229,845 386,225 54,000 182,233

2006/07 1,205,662 50,520 207,980 352,533 58,000 176,454

2007/08 1,482,208 43,998 287,029 320,325 36,000 264,526

Except for macadamia nuts all the oth er nuts are all utilized greater than 60% (Table 20). The six year average utilization for almonds are 92 % with a range of

utilization from 88

– 95 %, hazelnuts average 65 5 % with a range of 46

– 73 %, pecans are utilized at 62 % with a range of 35

– 62 %, walnuts average 81 % ranging from 75

– 87 %, macadamia nuts are utilized at 45 % for the same time period, and the pistachios at 75 % with a range of 49

– 92 %.

Table 20. Utilized Production (Shelled Basis) of the Tree Nuts . ( USDA AG Census, 2002, 2007 (USDA NASS, 2008, USDA Agricultural Statistics, 2008, USDA, NASS, Noncitrus Fruits and Nuts Summary ).

Utilized Production (Shelled Basis)

– All Tree Nuts

1,000 pounds

Season Almond Hazelnut Pecan Walnut Macadamia Pistachios

2002/03 1,090,000 15 ,600 78,444 243,963 24,078 149,513

2003/04 1,040,000 30,224 116,968 279,429 24,078 56,217

2004/05 1,005,000 28,548 82,552 282,360 25,668 170,515

2005/06 915,000 20,806 125,251 315,989 24,532 139,003

2006/07 1,120,000 37,116 91,394 296,931 26,349 119,000

2007/08 1,390,000 29,094 179,070 277,500 16,355 206,998

The percent of the total produce sales for the tree nuts sold in U.S. grocery stores for the years 2005

– 2008 is shown in Table 21 (The Packer, Fairchild, 2007, 2008, and

2009 ). Individual nuts in the grocery store data are not separated so the n uts sales include almond, Brazil nut, cashew, chestnut, hazelnut, peanut (not a tree nut), pecan, pistachio, and walnuts. Nut sales have declined from percent of total sales from 2005

– 2008 but55

are expected to increase in the future due to their nutritional benefits. The tree nut group

accounts for > 0.3 % of the tot al produce sold in the U.S.

Table 21. The Packer (Fairchild, 2007, 2008, 2009) List the Percent of the Total Grocery Store Produce Sales for the Tree Nuts Sold for the Years 2005

– 2008.

Commodity Percent of

Total Produce

Sales

– 2005

and Pounds

Sold in 2005 Percent of

Total Produce

Sales

– 2006

and Pounds

Sold in 2006 Percent of Total

Produce Sales

– 2007 and

Pounds Sold in

2007 Percent of Total

Produce Sales

– 2008 and

Pounds Sold in

2008

Nuts* 0.4 % and

37,296,902 lb 0.4 % and

31,657,502 lb 0.3 % and

27,279,571 lb 0.3 % and

25,367, 487 lb * Nuts sales include almond, Brazil nut, cashew, chestnut, hazelnut, peanut (not a tree nut), pecan, pistachio, and walnuts.

Specific Tree Nut Crop Production and Cultural Practices :

African Nut Tree:

T he African nut

- tree is a large 20

- 50 m/164 ft, fast growing tree native to the secondary forests of West and Central Africa. It is deciduous and monoecious, flowering when the young leaves begin to appear. The small, white flowers are borne in loosely branched terminal panicles. The trunk of the tree typically grows very straight and cylindrical, and in parts of Africa poles are made from the trunks, which quickly take root when stuck in the ground and are used as living telegraph poles. Fruiting vari es by country/climate, but fruits typically ripe anywhere from May

- November depending on the region. In Southern Cameroon, however, fruits are harvested January

– March. The fruit is an indehiscent drupe (20 g/0.7 oz) with 2

- 3 lobes, yellow when ripe and then turning black. It has a fleshy exocarp which covers a hard, woody endocarp. It is valued for the kernel inside the endocarp. There are typically 2

- 3 seeds per fruit, and extraction

of the kernel is difficult. These are valued both as food a nd as a condiment (the dried, ground seeds are known as “njansang” throughout much of West and Central Africa and particularly Cameroon, which cultivates this tree and exports the nuts and nut products, and among emigrant populations from these areas now l iving in Europe. The oil from the nut is also valued for cosmetic use and as a drying oil in paints and varnishes. The light wood is prized as a substitute for balsa and is carved for many decorative and household uses. The tree is also important for pl anting in hedgerows, as a shade tree for other crops, such as coffee, and for soil improvement as it helps fix and return nutrients to the soil in which is it planted. It takes about 25 years for tree to produce nuts. The African tree nut is not grown in the U.S., but is primarily cultivated in Cameroon and Namibia, though grows throughout West and Central Africa. Cameroon exports the whole and ground kernels to other African countries and abroad, and is the second most economically56

valuable non

- wood for est product traded in that country. In 1995 more than 172 t of the

nuts were traded in the Cameroon.

Almond:

The almond is a small tree, growing to 7.6 m (25 ft), usually held under 6.1 m (20 ft) by pruning when under cultivation. It is grown in Cal ifornia, and is native to warm temperate and Mediterranean areas of Europe, the Middle East, and Northern Africa. The leaves are simple, lanceolate and glabrous. The nuts are enclosed in a fleshy husk which becomes dry and fibrous and splits open allowin g the nuts to drop out or be easily separated at maturity. The shell is porous to woody, and encloses the oblong, flattened kernel. The kernel is up to over an inch long and half as wide. Almonds are marketed

both in the shell and as shelled kernels. T he hull splits at maturity, and nuts physically separate from the tree at this point. Thickness and weight of mature hulls may differ between cultivars and four basic types of hull splitting are identified. They are: (i) vertical split opening on one side such as ‘Peerless’ variety; (ii) ventral and dorsal split such as ‘IKL’; (iii) four way split such as ‘California’ variety; and (iv) a dorsal split such as for’ Nonpareil’ variety. Trees are harvested when hulls of fruit in the interior of the

canopy are open, since these split last. The seed coat turns brown during the drying

- out process of maturation. Oil extracted from almond kernels is non

- drying, and is obtained from both the bitter almond, not edible as a nut, and from sweet almond kernels. The o il from the two kinds appears identical. The oil is edible, but is used largely in the manufacture of certain pharmaceuticals. Bloom to harvest time takes 5 to 6 months with harvest ranging from August to October. Seeds are sown in nurseries and the see dlings transplanted after about one year. For special types, as in the U.S., scions are budded or grafted on to bitter or sweet almond, apricot, myrobalan, peach or plum seedlings. Trees are planted 6

– 8 m (19.6

- 26.2 ft) apart and irrigated, in spite of their relative drought tolerance. Trees should be pruned to a modified leader system. All types are self

- sterile so cultivars or seedlings should be mixed. In the United States, production is concentrated in California with almonds being California’s sixth leading agricultural product and top agricultural export

. The top almond cultivars in California are

‘ Nonpareil ’, ‘Carmel’, ‘Mission’ (Texas), ‘ Merced ’, and ‘ Price Cluster ’ Worldwide, yield averages about 930 lbs/acre, but can reach 3500

- 4500 lb s/acre in some countries, while yields in California range from 1100 to 2000 lbs shelled kernels per acre. Almonds are cultivated and naturalized throughout the Mediterranean region and temperate Asia. Top producing countries include Spain ( 220,000 tonne s/242,440 tons), Syria, ( 119,648 tonnes/131,852 tons), Italy ( 112,796 tonnes/124,301 tons), and Iran ( 108,677

tonnes/ 119,762 tons ) . In California the almond hulls are used for livestock feeding the U.S the NAFTA Crop Production Region is 10, since all the almonds are produced in

California.

Beechnut:

Beechnut is a tall (30

- 40 m), deciduous, late

- succession forest tree of spreading form, found in forests throughout temperate North America and Europe. It is notable for57

possessing extremely smooth gr ey bark. The monoecious flowers in the spring appear with leaves; staminate flowers in drooping heads, and pistillate flowers in small spikes. The nuts are triangular and develop in prickly burrs in the fall, and are collected for eating in small amounts and sometimes pressed into oil. Beechnuts are cultivated primarily as an ornamental and for timber. The nuts mature in late summer and fall to the ground, over a period of several weeks. It can be propagated readily from seeds sown in

the fall. Beechn uts take up to 40 years to produce abundant seed and yields up to 2800kg/ha were recorded in Michigan. Ornamental varieties are grafted onto seedling stock. It is not yet commercially cultivated for nuts because of low yields but it currently grows from New Jersey to Florida and west to south Illinois and Texas. Western Europe also grows beechnuts and it is native to temperate parts of Asia and throughout Europe. Beechnuts are grown in NAFTA Crop Production Regions 2, 3, 4, 5 and 6.

Betelnut

Beteln ut is a tall palm with a straight and slender trunk, about 15.2 cm (6 in) in diameter, and grows to 9.4

- 30.2 m (30

- 100 ft) tall. It is native to the tropical Pacific, Asia, and parts of eastern Africa. Large leaves (1.2

- 1.8 m/4

- 6 ft) grow in a th ick crown; the many leaf divisions are 0.3

- 0.6 m (1

- 2 ft) long each. The fruit is egg

shaped, 3.8

- 6.4 cm (1.5

- 2.5 in) long, in the form of a seed within a thick fibrous husk surrounded by a fleshy covering. Betelnuts mature in 6

– 8 months after pollination. The nut and leaves are chewed in India and many Southeast Asian countries as a euphoric stimulant and breath freshener, and is a very important part of their culture. It is estimated that up to 10% of the world population chews betel nut. H e plant has two fruiting stems that produce 150

– 250 fruit and one hundred fruits weigh 1.5

– 2.3 kg. One hectare with 1,000 palms will produce 450,000

– 750,000 fruit that is processed

down to 15

– 25 cwt of dried betelnut nuts (seed). The harvest vari es by region, usually taking place in a period sometime between August and March. It is propagated exclusively from seeds, and often gathered from 25

- 30 year old trees. They are good

bearers of fruit for 30

– 75 years and can live to 100 years. The se eds are usually gathered in November, dried for several days, and then sown 15

- 22 cm apart. After 3 months to 2 years, seedlings are transplanted to beds in between existing trees to replace old trees and at rates of 1,000

– 1,500 palms/ha. It prefers shade, and needs to be well

irrigated in the dry season, and prefers a soil pH of 6.3

– 6.5. There is no production in the U.S. In Guam 3,098.6 kg (6,825 lb) were harvested in 2002 and 5,182.9 kg (11,416 lb) were harvested in 1998, while in the Northern Mariana Islands, 19,777.6 kg (43,563 lb) were harvested in 2002 and 9,849.5 kg (21,695 lb) were harvested in 1998. Top producing countries in 2006 were India ( 483,100 tonnes/ 532,376 tons ), China (150,000

tonnes/ 165,300 ton s), and Myanmar (57,000 tonnes/ 62 ,814 tons ). Other producing countries are Bangladesh, Indonesia, Kenya, Malaysia, Maldives, Nepal, Sri Lanka, and Thailand. In total, 857,679 tonnes ( 945,162 tons) were produced worldwide in 2006 on 706,392 hectares ( 1,744,788 acres) of land (FAOSTAT).

Brazil nut:58

A large tree, up to 45.7 m (150 ft) is a tropical evergreen, native to northern Brazil, where it forms forests along the Amazon and Rio Nigro Rivers. It has large leathery leaves, 0.6 m (2 ft) long and 15.2 cm (6 in) wide. The fruits are round, about 15.2 cm (6 in) in diameter, with a hard shell near 1.3 cm (1/2 in) thick, which contains 18 to 24 of

the 3

- sided angular nuts. The shell of the individual nut is woody, rather thin, and completely filled with the white, creamy kernel. Large quantities of nuts are gathered from the trees for local consumption and export, but they are little cultivated. The industry is very economically important to Brazil. Bloom to harvest may take out to a year when the pod (nut) matures and drops to the gr ound, starting in late November and continue into early June. A large female long

- tongued orchid bee pollinates the Brazil nut tree. If both the orchids and the bees are present, the fruit takes 14 months to mature after pollination of the flowers. Braz il nuts are not cultivated in North America.

Brazilian pine :

The Brazilian pine is a large, dioecious conifer reaching 40 m (131 ft) tall, and prefers a well

- drained, acidic soil. It is found only in the low mountains of southern

Brazil and northeas tern Argentina. It has thick, scale

- like, triangular leaves, and bears an abundance of edible seeds in each of its large female cones. It is also critically endangered, due to habitat loss and from being widely gathered by local and native people for foo d. Seeds mature in autumn, 18 months after pollination and it is not produced in the U.S. It is native to parts of Brazil, Argentina, and Paraguay and 3,400 tonnes (3,747 tons) of seeds are collected annually in Brazil.

Bunya:

The bunya is a t all (u p to 45.7 m/150 ft) evergreen conifer with evenly spaced, horizontal branches arranged in regular tiers and whorled around a trunk that continues to the very tip of the tree. It is native only to areas of Queensland, Australia. Young trees

are cone

- shape d and symmetrical. Trees larger than 6.1

- 15.2 m (20

- 50 ft) lose the lower branches and develop distinctive dome

- shaped crowns. Bunya has two kinds of leaves. The glossy juvenile leaves are narrow, 2.5

- 5.1 (1

- 2 in) long, stiff and sharp

pointed. The woody mature leaves are oval and short. Mature female trees produce huge, spiny, pineapple

- shaped cones up to 23 cm (9 in) long that can weigh up to 8.2 kg (18 lb) and contain many edible seeds that resemble pine nuts. It is an important food

source to local native Aborigines in Australia. Bunya nuts are slow to germinate, taking an average of about six months, and it takes about one year to develop roots

. The plant prefers moist soils and requires at least partial sun. It is also exclusively culti vated for ornamental purposes, and is not produced in the U.S.

Bur Oak:59

The bur oak is a large deciduous temperate climate, woodland tree native to North America from the East Coast to Midwest. The flowers are yellow

- green catkins appearing in the sp ring. As with acorn nuts the cup encloses the bottom half of the nut. This species has the largest leaves and acorns of any oak and most palatable nut of all the oaks. It has been primarily cultivated for its value as an ornamental, as it is very hardy and can withstand a wide range of conditions. Oak fruit are non

- fleshy indehiscent nuts

called acorns. Oaks can take 20

– 30 years to mature and begin producing acorns. Average yields of oaks vary widely from 90

– 1620 kg/ha. In South Korea, the acorns

are collected in the wild and consumed as a cooked starch

- gel, called “Muk”. The acorns mature in the fall. It prefers loamy to clay soils, and can tolerate semi

- shade to full sun as well as it can tolerate drought, strong winds, and atmospheric polluti on. Acorns must be soaked to remove the bitter tasting tannins prior to eating. Oaks are propagated by planting the acorns. There is no data on its production in the U.S. but it is an important wildlife food source. Other production regions include Can ada, and Korea. Over 900 tonnes (1,000 tons) were produced in South Korea in 2006 (MAF 2007).

Butternut:

The butternut tree is large, up to 30.5 m (100 ft), and is found from southern Canada to Georgia, and west to the Great Plains. The fruits are u p to 5 in clusters, about 7.6 cm (3 in) long and ribbed, and the nut is oblong, ribbed, with a hard, woody, thick shell. The kernel is separated from the shell with difficulty. The fleshy husk which surrounds the

nut is difficult to remove. Butternuts a re not cultivated in the U.S., but are gathered from the wild. The taste is reported to be oily and sweet tasting with a rich, agreeable flavor.

The seeds mature in October

- November. Butternut requires a deep well

- drained loam and a position sheltered from strong winds, and prefers a sandy soil with a pH of 6 to 7. Trees will come into bearing in 6

- 10 years from seed and fruiting is usually biennial. At least twenty

- five commercial varieties have been developed. Production regions include

the U.S and Canada, and are in the NAFTA Crop Production Regions 1, 2, 4, and 5.

Cajou:

The cajou is a very large tropical tree up to 45.7 m (150 ft), native to the Amazon region and the Guiana. It is propagated by seed and is sometimes available in local

ma rkets. It is not grown commercially in the U.S but is grown in Guyana, Suriname, Venezuela, Brazil, Colombia, and Peru.

Candlenut:

The candlenut is a m edium sized (9

- 20 m) tropical tree, now found throughout much of the moist tropics but native to Malaysia, the Philippines, Polynesia, and other South Seas Islands. Flowers white or cream, occurring in 10

- 15 cm panicled cymes during April and May and is ready for harvest in the autumn. Fruit an indehiscent drupe60

(5

– 7.5 cm) and is difficult to se parate from the kernels. There are about 5 nuts in each

fruit and are 2

– 4 cm round with a brittle shell. Valuable primarily for its useful, inedible oil but kernels are often eaten locally, despite the fact that raw and roasted kernels have varying lev els of toxicity and may cause vomiting, abdominal cramping, and diarrhea. It will bear two heavy crops each year and is usually propagated from seed, requiring 3

– 4 months to germinate. Seedlings planted at rate of 300/hectare. It takes 4 years to begi n commercial production. Planting density varies from 150

– 300 trees/ha. . Once established, trees require little to no attention, and requires a hot, moist climate. The tree can yield up to 80 kg of nuts/tree/year which is equivalent to 4.5

– 15 t/year . It is cultivated in Hawaii and is found in China, Taiwan, India, Sri Lanka, Cambodia, Myanmar, Thailand, Vietnam, Indonesia, Malaysia, Papua New Guinea, Philippines, and Australia. The NAFTA Crop Production Region is 13.

Cashew :

The cashew tree is a large, spreading tropical evergreen, 9.1

- 17 m (30

- 50 ft) high and spreading outward up to 60 feet. Cashew are native to the tropical Americas but is now distributed throughout the tropics. The nuts are borne on a fleshy receptacle, 5.1

- 10.12 cm (2

- 4 in) long, called the apple, which is edible and used for eating fresh or in jams or jellies in the tropics (see Figure below). The whole nuts are removed from the apple and sun dried for two days. The nuts with surrounding tissues are 2.54

- 3.8 c m (1

- 11⁄2 in) long and kidney shaped. The shell has an oily outer layer, and a thin hard inner one. Between these layers is a honeycombed tissue, from which cashew oil is obtained. The kernels are difficult to separate from the shell because of the curv ed shape. After roasting the whole nut to extract the oil, shells are removed by hand or machine. The flowering period takes 2

- 3 months and the fruit will mature another two months. About

3

- 4 months for main crop which is gathered off the ground. Ca shew is propagated usually by seed, although sometimes by grafting or other asexual method. Seeds germinate poorly and are often planted several per hole and thinned later. Seedlings do not transplant well and should be planted 10 x 10 m and ultimately t hinned to 20 x 20 m. Once established, little care is needed. They are planted 20

- 35 ft between trees and rows. Fruiting begins in the third yea and continues to bear for at least 30 years. Planting rates are 250 trees/ha. They are not commercially grown in the U.S. but are grown in southern Florida gardens. Cashew is cultivated in 32 countries worldwide, with a total of
33,900 sq. km under culti vation and most. Average yields worldwide are about 600 lbs/acre. The primary production countries in 2 006 were Vietnam ( 941,600

tonnes/ 1,037,643 tons ), Nigeria (636,000 tonnes/ 700,872 tons ), India (573,000

tonnes/ 631,446 tons ), Brazil (573,000 tonnes/ 631,446 tons ), Indonesia (122,000

tonnes/ 134,444 tons ), and Tanzania (90,400 tonnes/ 99,621 tons ). In total 3,103,450 tonnes ( 3,420,002 tons) were produced worldwide in 2006 on 3,387,342 hectares ( 8,366,735 acres) of land. The EPA Crop Production Region is 13.

Castanha

- do

- maranh ã o :61

The Castanha do

- maranh ã o is m edium

- sized (9

- 18 m) tropical to subtropica l tree that are native to Brazil. It has large and showy flowers, perfect and terminal, borne on long peduncles. Fruit is a capsule, longitudinally dehiscent, containing about 10

- 25 edible, irregularly shaped seeds. Often confused in literature with P . aquatica , but the two are not synonymous. It will flower and fruit throughout the year in some places but principally in June through November in others. It can be propagated from seed, cuttings, or air layering. Seeds germinate quickly and are fast g rowing. Resistant to both drought and flooding, but prefers high levels of moisture and is usually found along rivers, sometimes submerged. Grows well in a variety of soil types, and requires full to partial sun and begins to fruit after 4

- 5 years. It is not cultivated in the U.S. but is in

Brazil.

Chestnut:

The several chestnut species vary in height from approximately 30.5 m (100 ft) tall for the American to about 9 m (30 ft). Chestnuts are native to warm temperate regions of the Northern hemisp here, including North American, Europe, and Asia. The fruits are spilled burrs, fibrous as they mature, which partially open at maturity. They usually contain up to 3 angular nuts. The "shell" or covering of the kernel is rather thin and tough, leathery rather than woody. A fungus disease, chestnut blight, has killed practically all large Native American chestnut trees in the U.S. The Chinese chestnut, resistant to the blight, is now planted somewhat frequently, and considerable quantities of European nuts are imported. It takes from 100 to 120 days from flowering to harvest with the nuts harvested from ground in August to October. Chestnuts prefer a good well

- drained slightly acid loam but succeed in dry soils and in hot sunny sites. Trees require wide spacing to encourage low, broad crowns and exposure to sunshine, which increases nut production. Once established, it is very drought tolerant. Although it is very winter

hardy, this species thrives in areas with hot summers: In the U.S it grows in Eastern U.S., California and maritime northwest U.S. Almost 162 hectares (400 acres) in California (1992) and over 810 hectares (2000 acres) have been established nationwide with most in the southeast. In 2006 the major production countries for chestnuts were China (850,000 tonnes/936,700 tons), South Korea (76,447 tonnes/84,245 tons), Turkey (52,824 tonnes/58,212 tons), Japan (23,100 tonnes/25,456 tons), and Greece (20,946 tonnes/23082 tons). In total, 1,179,727 tonnes ( 1,300,059 tons) were produced

wor ldwide in 2006 on 341,698 hectares ( 843,994 acres) of land (FAOSTAT). Chestnuts grow in NAFTA Crop Production Regions 1, 2, 3, 4, 5, 10 and 12.

Chinquapin:

Chinquapins, also spelled chinkapins are shrubs and small trees commonly found throughout the East, South, and Southeast. They are characterized by usually bearing one nut per bur and having burs that open into two halves like a clam shell. The Chinquapin is characterized as a large, spreading, smooth barked multi

- stemmed shrub, 2 to 4 m tall;

o ccasionally single stemmed and 5 to 8 m tall. Large trees up to 12.8 m tall are62

sometimes found, especially under human intervention when some of the competing trees have been removed. The Allegheny chinquapin is found in dry sandy woods and thickets

fro m southern New Jersey and Pennsylvania to Kentucky and Missouri, south to Florida and Texas. This chinquapin has been widely recognized for its sweet, edible nut; a wood source for fuel, charcoal, fence post and railroad ties; and a coffee and chocolate

s ubstitute. In Georgia, bud break normally occurs during the last week of March or the first week of April. Flowering occurs after the first leaves have expanded. Two or three types of flowers and inflorescences are borne in the leaf axils of current sea son's growth. Unisexual male catkins appear near the bases of the shoots and bisexual catkins containing both male and female flowers are found nearer the terminal ends of the shoots. In Middle Georgia, pollen shed of the unisexual male catkins normally occurs during the first week of May. The pistillate flowers of the bisexual catkins are normally receptive during the second week of May, several days before the staminate flowers of these bisexual catkins shed pollen. Chinquapins are rarely self

- fruitfu l and cross pollination is necessary to ensure a good nut crop. The Allegheny chinquapin is normally ready for harvesting in early September. Harvest must be promptly in order to gather nuts before birds and small mammals remove the entire crop. One sin gle brown, lustrous, rounded nut is contained in each spiny green involucre (bur). The burs of chinquapin are normally no more than 1.4 to 4.6 cm in diameter and split into 2 valves at nut maturity. In contrast to other chestnut species, chinquapins norm ally remain attached to the bur at the hilum for several days after the bur has opened. Also, the burs and catkins do not abscise at harvest time, but remain attached until later in the fall or even until the following season. On each catkin, the more ba sal burs usually ripen before the more distal ones. These characteristics make chinquapins very difficult to harvest. The burs cannot be shaken or easily picked from the trees. Even at the peak of harvest, shaking a chinquapin branch will bring down onl y a small percentage of its crop, since half of the nuts are already gone, and the other half have not opened yet. Complicating the harvest and subsequent use is the fact that chinquapin are fall germinating. Often the radicle emerges while the

nuts are still on the tree. Some of the chinquapin clones from isolated sites in Georgia bear nuts averaging 480/kg (fresh weight); however, the normal range is 800 to 1,320/kg. Yield extrapolations from a 6 row planting of 30 trees of Castanea pumila in southeas tern Kentucky with a spacing of 3 m between trees and 6 m between rows would give 1,230 kg/ha in the 12th year and 3,100 kg/ha in the 14th year. These yields are lower than expected due to fall germination and adherence of nuts in the bur. Yield was also

measured from a 7

- year

- old, closely

- spaced (1 x 2 m) planting of seedlings in east central Ohio. The planting had reached crown closure, but had not yet suffered much branch loss due to shading. Individual tree yields varied considerably from nothing up to 1 kg or more. Average yield from trees in the middle of the planting was 5,000 ± 1,500 kg/ha. This yield equals or exceeds the level expected for other chestnuts because the prolific production of chinquapins compensates for their small size.

Coco nut:

The coconut palm is a monocotyledonous plant that may reach 30 m (100 ft) or more, with very large leaves arranged in a crown. It is found throughout the tropics.63

Coconut palms have two natural subgroups simply referred to as "Tall" and "Dwarf". Tall varieties are 25 m tall and dwarf varieties are 8 m tall. Most commercial plantings use high yielding, longer lived tall cultivars, and each region has its own selections. The divided leaves may grow up to 5 m (18 ft) long and the lanceolate leaflet s up to 0.9 m (3 ft) long. The fruits are produced in clusters near the growing tip. They vary in shape, but are generally near globose to oblong, up to a foot or more in length. The nut is encased in a thick, fibrous husk which is persistent and must b e cut away to expose the nut. The shell is very hard and woody. When mature the edible, oily flesh or kernel adheres to the shell, with a hollow center which contains a liquid during growth. Coconut is one of the ten most useful trees in the world, and is economically important to many countries. The immature coconut or “water coconut” is used for its edible liquid and gelatinous flesh. The commercial coconut is 1 to 3 pounds in weight. The dried flesh or meat of the mature coconut is the copra of com merce, produced in great quantities mainly for its oil. Fruit set to maturity is 11 to 12 months. One mature bunch of coconuts can be harvested each month. Fully mature fruit require about one year to ripen, and are brown or black, depending on cultivar . The endosperm, from which the copra and oil are derived, is mature at 10 months after bloom. For coir production, fruit must be harvested about 1 month before full maturity, since the mesocarp fiber turns brittle and dark at maturity.

Water coconuts a re harvested when about 7 months old after pollination, just after fruit reaches its full size and prior to mesocarp drying. Coconuts fall from trees when fully mature, and are easily collected from the ground. Dwarf varieties grow to 8 m and are spaced 6

– m apart. Tall varieties grow to 25 m tall and spaced 8

– 10 m apart which is 160 palms/ha. Like most palms, coconuts are seed propagated and the seedlings are raised from fully mature fruits. Seeds planted in nursery to facilitate selection of best to put in field. Soil should be sandy or light loamy, free from water logging and away from heavy shade. Nursery beds should be raised and separated by shallow drains to carry away excessive water. About 16 weeks after nuts are planted; the shoot appear s through the husk. At about 30 weeks, when 3 seed

- leaves have developed, seedlings should be planted in permanent sites, at 70

- 150 trees/ha (28

- 61 trees/acre). Average yield is 4457 lbs/acre. In the US in 2002 over 4,540,000 kg (10,000,000 lb) of c oconuts were harvested from American Samoa, 235,535 kg (518,800 lb) from Puerto Rico, 9,434 kg (20,780 lb) from the Northern Mariana Islands, 1,603 kg (3,530 lb) in Guam, and 5,825 kg (12,830 lb) in the Virgin Islands. Coconuts are also grown in Florida a nd Hawaii. Coconuts are cultivated throughout the tropics. Primary coconut producing countries in 2006 were Indonesia ( 16,375,000 tonnes/ 18,045,250 tons ), the Philippines (14,957,910

tonnes/ 16,483,617 tons ), and India (11,000,000 tonnes/ 12,122,000 tons ). In total, worldwide production was 55,324,323 tonnes ( 60,967,404 tons) on 10,615,978 hectares ( 26,221,466 acres) of land (FAOSTAT). The NAFTA Crop Production Region 13.

Coquito nut:

Coquito is a very large, hardy palm native to Chile and is the mo st southerly representative of the palm family in South America . The tree reaches up to 25 m (82 ft ) in height, with tough pinnate leaves arranged in a crown at the top. Thick, 4

- 6 foot (1.5 m) diameter trunks are dark gray and conspicuously marked with raised, diamond

- shaped64

leaf scars. The leaves may reach 4.9 m (16 ft) in length each. Purple flowers are born on a 1.2 m (4 ft) long stalk arising from among the leaves. It is pollinated by wind and various insects. In the wild it is typically found a long the sides of steep ravines at altitudes up to 1,400 m (4,600 ft). This palm is valued both for its sugary sap as well for its smooth, yellow to orange fleshy fruits known as coquito, 2.54

- 5 cm (1

- 2 in) in diameter. Within the fruit are smooth, ta n seeds which have a hard outer shell encasing an oily, edible white flesh which is consumed like a nut. The seeds are said to resemble a

miniature coconut in appearance and taste. Although long cultivated and sought after for its sap the wild population s of these trees have declined greatly, as harvesting the sap requires the destruction of the slow growing tree, a practice that has recently been outlawed by the Chilean government. It is also cultivated as an ornamental in many other temperate climate c ountries, including the U.S. It is propagated by seed, which may take

6

- 16 months to germinate. Does not like extreme heat and can tolerate temperatures

down to

- 15 °C (5 °F), preferring cooler summers and a generally Mediterranean climate. It require s full sunlight and prefers a deep, well drained soil. Once established, the extensive root system can withstand long droughts

. The fresh nuts are available locally in season. The dried nuts can be purchases over the internet and from specialty food

sto res and suppliers such as Frieda’s® and Melissa’s® specialties . It is cultivated in California (NAFTA Crop Production Regions 10, 11) as an ornamental and possible nut crop. They grow well in many parts of California and are hardy to about 20 F (USDA

Zon es 9

- 10A). Other production regions include Chile as a food source, and Britain, Italy, South Africa, and Switzerland for its ornamental value. There are now many Chilean nurseries cultivating palm seedlings, with an established goal to quintuple the

exi sting populations of these trees over the next 30 years with an interest in nut production.

Dika Nut:

A large, deciduous tree native to tropical West Africa and reaching up to 40 m (131 ft) in height. The trunk is often buttressed up to 3 m (9.8 ft) h igh, and may be more than 1 m (3.3 ft) in diameter. The bark is grayish and flakes away in plates. It has dark green, leathery, alternate leaves which are elliptical in shape and up to 15 cm (5.9 in) long by 6 cm (2.4 in) wide. The flowers are borne in panicle in the axes, and are small and greenish white. The fruit is green to yellow and 5 cm (1.9 in) by 7.5 cm (2.9 in) when mature, and has fibrous yellow fresh surrounding a large seed. Planting to harvest

is 7

- 10 years if planted from seed; 3

- 4 y ears from air

- layered seedlings. Prefers tropical lowlands and moist conditions, often found in the jungle. Does best with rainfall from 150 to 300 cm (59 to 118 in) annually and a mean temperature of 25 to 32 oC (77 to 90 oF). Grows well in many kinds o f soils but prefers well drained, acidic soil. If propagated from seed, seed should first be well dried at ambient temperature and then soaked overnight to aid in germination. May also be propagated by cuttings and bud grafting. Both the fruit and the se ed kernel are highly valuable, both nutritiously and economically, throughout West Africa, although the kernel is far more widely used and traded. The fruit is similar to a mango, while the oil

- bearing seed has many uses both in cooking and in industry. The kernel, when dried or after pressing for oil, can be stored65

for up to 1 year, while the oil can remain good for up to a decade. The wood is also extremely valuable and useful. It is cultivated to some extent, and is currently undergoing

research to im prove the breed for commercial

- scale growth, but the vast majority of the fruit is still gathered from the wild. In recent years the two forms of this versatile plant have been proposed as separate species but acceptance has been incomplete. The eating

t ype, which yields good fresh fruits, retains the original name Irvingia gabonensis . The “cooking type,” whose seeds are widely processed across West Africa, scientific name is Irvingia wombolu . It is not grown in the U.S but is found in West Africa, parti cularly Cameroon, Nigeria, Gabon, and Equatorial Guinea. Uses include fruit, juice, jam, jelly, wine, thickener, condiment, cooking oil, confections, bread, meal, soap making, timber, and pharmaceuticals.

Ginkgo:

Ginkgo is an ancient, deciduous tre e up to 36.6 m (120 ft) tall. It is gymnosperms which are plants that lack flowers but produce seeds and are woody. The ginkgo is native to China and Japan, but is almost unknown in the wild although it is cultivated as an ornamental tree throughout much of the temperate world. It was introduced from Japan to Europe in 1730 and to the U.S in 1784. It prefers moist, deep, sandy soils in full sun, but is very adaptable to stressful situations, including poor soils, compacted soils, various soil pHs, heat, drought, winter, salt spray, and air pollution and is therefore very urban tolerant. It is propagated primarily by cuttings from male cultivars grafted onto seedling rootstock, but also sometimes propagated by seed. Males are cultivated preferentially f or ornamental use, as many people find the smell of the fruit from the female tree offensive caused by butyric acid. Ginkgos are dioecious and females produce fruits after they are 30 years old. The fruits resemble plums up to 2.5 cm (1 in) in diameter. The pulp is

foul

- smelling and the fruit contain one seed which is about 1.9 cm (3/4 in) in diameter. After the pulp is removed, the seeds or nuts are washed and sun

- dried. They are harvested

in the fall. Seed kernels have been used as a food and medicin e for several thousand years. In U.S., ginkgos are mostly grown as ornamentals, whereas, in Japan and China, the nutmeat is enjoyed as an appetizer or cooked with meat. Over 4,535 tonnes (5,000 tons) are produced annually in China (FAODOC), and over 1,36 0 tonnes (1,500 tons) were produced in South Korea in 2006 (MAF 2007).

Guiana chestnut:

The Guiana chestnut is a medium

- sized (up to 23 m/75 ft) evergreen tree, native to the tropical Americas but cultivated also in parts of northern Africa and the Wes t Indies. In California it grows from 10

– 15 ft tall with a spread of 8

– 10 ft. It is propagated by seed and grows along freshwater streams and in swamps. The five

- petaled flowers, appear solitary in the upper axils, and are very showy with bright yel low

- orange stamens while the fruit is a brown capsule, 3

- 4.5 cm, with a white fleshy mesocarp. Fruits mature from in four to five months March to August. It produces at eight years about 130 fruit and at 25 years 250 fruit/tree. The seeds (nuts) enlar ge and burst from the66

pod and fall to the ground. They are harvested directly from the ground after they have fallen from the tree. The edible seed is a popular snack in the tree’s range, but it is best

known in the form of a dwarfed ornamental. The nut s taste like peanuts after they are roasted. It is not produced in the U.S. but is found in Puerto Rico and the Virgin Islands as well as Mexico and South America. The NAFTA Crop Production Region 13.

Hazelnut

The hazelnut tree is small shrub about 4. 6 m (15 ft) up to a tree size of 40 m tall, spreading and much branched. The tall trees are called tree hazels and the shrubs are

bristle

- husked shrub species. Hazelnuts are native to the temperate northern hemisphere. Oregon's Willamette Valley farmers have grown hazelnuts since 1858 when the nuts were called filberts, a term still used by many Oregonians. The nuts are nearly enclosed in a leafy involucre, but the apex is partially exposed. The shell is hard and woody. The

kernel is free inside the s hell, and separates freely when cracked. The inconspicuous female blossoms are exposed and pollinated in advance of the leafing out of the trees. They are valued for their nuts, which are eaten whole and used in a wide variety of products, from nut butte r to liqueur. In addition to cultivated kinds, two species of Corylus , namely C. americana and C. cornuta are native in the U.S., and nuts from them are often harvested locally. The tree leafing to harvest is about four months. It prefers warm, sheltere d locations, and is usually cultivated by layering or grafting as varieties do not breed true from seed. Planting trees is 5

- 7 m (16

- 23 ft) apart. Trees should be planted in late winter or early spring after danger of severe frost has passed. Tree s hould be trained to a central leader and will form hedgerows if this is not done. Suckers from

roots are common and should be removed. Pollinizer placement was 8:1 (every 3rd tree in every 3rd row), but has been increased to 17:1 in many cases (every 6th tree in every 3rd row) since pollen can travel about 60 ft. Tree spacing is generally triangular or square, with 10

- 20 ft between trees; this gives densities of 150

- 250 trees/acre. Vigor gradually declines over 5 yr periods, so every 5th row is seve rely pruned each 5 years to stimulate new productive wood; only thinning cuts are made. Yields are drastically reduced the year of pruning, since flower buds are removed, but trees yield high for 2

- 3 years after pruning. Alternatively, trees can be ligh tly pruned every other year, preferably in the "on" year, to maintain more consistent yields. Yields will fluctuate between 1150 and 1450 lb/acre since it is alternate bearing. In Europe, hazelnuts are generally none irrigated, being planted in areas wit h adequate rainfall and high humidity and maritime climates. The level of management in Turkey is low, with bushes planted in clumps, often on steep hillsides, and harvested by hand. In the Pacific Northwest, the deep, fertile

soils of the Willamette Val ley do not require irrigation. In 2006 the United States produced 41,000 tones (45,182 tons) of hazelnuts in the shell, on 11,462 hectares (28,311 acres). The U.S. is the It was the third highest producer of hazelnuts in the world. (FAOSTAT). It is cult ivated throughout Europe, and in parts of Asia and the Middle East. In 2006 the other top producing countries were Turkey ( 661,000 tonnes/ 728,422

tons ), Italy (142,109 tonnes/ 156,604 tons ), and Spain (25,000 tonnes/ 27,550 tons ). It is grown in NAFTA Crop Production Region 12 mostly in Oregon.67

Heartnut:

The heartnut is a type of walnut tree, growing to 20 m, that is native to Japan and

is notable for its heart

- shaped kernels. It is deciduous and its flowers are yellow

- green catkins which appear in the spring at the same times as the first leaves. The nuts are spherical, 3

- 5 cm, and produced in bunches of 4

- 10. They are surrounded by a green husk until they ripen, in autumn. They are also popular as an ornamental tree. Nuts are edible, and have a n oily texture but are easily distinguished by their heart shape: Nuts ripen in September and October. Propagation is by grafting, transplant in early spring. It is produced in Japan and NAFTA Crop Production Regions 1, 2, 4, and 5.

Hickory nut:

The hickory nut is a large deciduous trees, up to 30.5 m (100 ft) or more, all native to parts of the eastern U.S and Canada. Fruits are generally near globose, glabrous, and somewhat ridged, and 2.5

- 3.8 cm (1

- 11⁄2 in) long, and have edible

kernels. The nu t is encased in a fleshy husk which becomes fibrous and opens as the nuts mature as the shells are hard and woody. The kernels do not separate from the shells readily. They are usually they not grown commercially for the nuts, but some quantities

are har vested from native or ornamental trees. Limited quantities either in shell or as kernels are marketed. Mature nuts fall out of hulls while on the tree from September to December and timing from leaf bud opening to nut maturity is almost 150 days.

Hickor ies are found in a variety of climates and soils throughout eastern North America, but all species prefer mid to high levels of humidity and rainfall, and require a frost

- free period of at least 150 days. Hickories are grown in the central and Eastern U.S and the nutmeg hickory in the U.S. and northern Mexico. Other production regions for the pignut and shagbark hickory are Canada and Eastern Europe. The NAFTA Production Regions are 1, 2, 3, 4, and 5.

Japanese horse

- chestnut:

A deciduous tree growing from 20

- 35 m and native to Japan. It is hardy to zone 6 and is frost tender. It is in flower in June and the seeds will ripen in September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by

bees. The plant prefe rs sandy, loamy, and clay soils and requires well

- drained soil. The plant can grow in semi

- shade, light woodland, or no shade. It is not related to the true chestnut (Castanea spp.). Nuts are ready to harvest in the autumn. Propagation is by

seed and i s cold tolerant when dormant, although frost can damage young growth and it requires moist soil. It is grown in Japan.68

Macadamia nut:

The macadamia nut tree is a tall (up to 20 m), with a width of 12 m or more, tropical evergreen, native to Austr alia but introduced to Hawaii, South America, and parts of Africa, where it is commercially cultivated. Flowers are a creamy white, lacking petals, and borne in groups of 3

- 4 in racemes. The period from bloom to maturity: is 8 to 10

months. Peak harve st is in October as the ripe nuts will drop to the ground. Fruits are near globular, up to 3.8 cm (11⁄2 in) diameter. The outer covering or husk is leathery and separates readily from the shell of the nut. The shell is very hard, woody and thick and

when the shell is cracked, the round kernel is free. Occasionally, 2 hemispherical kernels occur in a nut. The single kernels are about 1.3 cm (1/2 in) in diameter, and rich in flavor. Propagation is primarily by grafting (seeds easy to germinate but do not breed true), which can be difficult due to the hardness of the wood and is best done in the spring from February to April. They prefers a rainforest

- type climate and must be warm and well irrigated when young, but are much more tolerant of adverse conditi ons when established. Cultivars grown in Hawaii include ‘Kakea’, ‘Kau’, ‘Keaau’, ‘Makai’, ‘Mauka’, ‘Pahala’, and ‘Purvis’. The cultivars are distinguished by crown shape, and upright types, such as ‘Kau’ and ‘Keaau’, are being favored over more spreading types recently. In the 2005

- 2006 growing seasons, 7,290 hectares (18,000) acres were harvested in Hawaii for 27,210 tonnes (30,000 tons) (NASS). Yields average about 3,000 pounds/acre. Macadamia are also grown in California. Most cultivars grown in

C alifornia are derived from Macadamia tetraphylla. There is a small macadamia industry in San Diego County, CA. In San Diego County in 2006, there were 128 acres producing a total of 192 tons. The United States consumes the majority of the world’s

macada mia nuts, importing an amount almost equal to domestic production. Macadamia nuts are also an economically important product in Australia, Hawaii, Guatemala, and parts of Africa with Australia producing more than a third of the world’s macadamia nuts

in 2 003/2004. It is produced in NAFTA Crop Production Region 10 and 13.

Mongongo nut :

The mongongo is a large 15

- 20 m (49

- 66 ft) tree native to dry upland areas of Southern Africa, particular around the Kalahari. It is dioecious and has small, whit e to yellow flowers are borne in loose, slender sprays. The bark is light grey to pale golden brown, and the light, yellowish wood is very useful for making boats, packing crates, and children’s toys. Flowering to maturity is from March to May. However, this species is primarily valued for its fruit and, particularly, for the nut inside. The fruits are oval and about 3.5 x 2.5 cm (1.4 x 1 in) and drop from the tree while still green, ripening on the ground. This species is highly productive and one fem ale tree has been known to produce up to 950 fruits in a year. The fruit has a fuzzy, inedible peel and a thin layer of sweet, edible pulp surrounding large, hard pit. Inside the pit are a soft inner shell and an edible kernel (1.2 g/0.04 oz) that is valu ed both for food and oil. The oil is used both for culinary purposes and as a skin cleanser and moisturizer in winter months. Mongongo is one of the most consumed nuts in Africa and in some69

areas, such as among the Bantu people or the Kung San Bushmen, i t is considered a staple food. The fruit and kernels can both be stored for extended periods of time and still remain edible. While not appearing to be commercially cultivated; fruits are gathered from the wild, and it often found in large stands. Prefe rs hot, dry climates with little rainfall and does well in sandy soil and is highly drought

- tolerant. It mainly grows on hills or sand dunes in and around the Kalahari. The nuts are difficult to obtain outside of the tree’s native range. The oil can be sometimes purchased in specialty shops or over the internet. It is not produced in the U.S. but is grown in Southern Tanzania, southern DRC, Angola, Namibia, Botswana, Zambia, Malawi, Zimbabwe, Mozambique and northern South Africa.

Monkey

- pot:

The m onkey

- pot is a large tree, may be over 30.5 m (100 ft) high that is native to rainforests of Brazil. Upon flowering, the monkey pot tree becomes covered in

thousands of small rose

- purple flowers that attract bees. Fruit will ripen in 11

- 12 months, and are shaped like a small pot, in which the seeds are found. When the fruit is ripe, it splits open and spills the seed across the forest floor. It flowers in September and October. It is propagated by seed, found in moist tropical rainforests. It is not cultivated in the US, but is grown in Brazil and Peru.

Monkey puzzle nut :

The monkey puzzle is a large, long

- lived coniferous tree, native to Chile and Argentina and reaching up to 40 m (132 ft) in height and 9.1 m (30 ft) wide. The growth form is p yramidal with evenly spaced tiers of horizontal

- spreading branches arranged in regular whorls about the trunk. The leaves are thick, tough and scale

- like, triangular and sharply pointed, 3

- 4 cm (1.2

- 1.6 in) long. The leaves are hardy for many years a nd cover most of the tree except for the very oldest branches. This species is dioecious, and the female trees produce large (12

- 20 cm/4.7

- 7.9 in diameter) cones which hold up to

200 seeds. The individual seeds are 3

- 4 cm (1.2

- 1.6 in) long and ar e soft, with a pleasant flavor much like a pine

- nut. Since the cones drop, harvesting is easy. The tree however does not yield seeds until it is around 30

- 40 years old. Monkey puzzle is the

national tree of Chile , and the seeds are extensively harveste d there. In some areas of

Chile the seeds are a staple food for native peoples, and are eaten raw or roasted, and will keep up to 9 months when stored in cool and dry conditions. This species is also an important timber tree, and is considered sacred by the indigenous people, and it is protected in the wild as an endangered species, but is grown outside of South America in Europe, North America, and Australia as a garden tree and recently in North America as a nut crop. In Chile, seeds are harvested Febr uary through May. The seed can be sown in a cold frame in February and will germinate in 1

- 2 months. The seedlings have delicate roots and must be carefully be transplanted to a pot. They should be placed in their final positions as soon as possible a nd protected from the cold their first winter if being grown in a temperate climateo r they can be propagated by shoots. It grows very70

slowly. Prefers well drained, slightly acidic, volcanic soil but will tolerate almost any soil type provided drainage is good. Tolerates salt spray in a maritime climate well, but does not do well with air pollution. The tree can grow in North America along the coastal zone from coastal Virginia, down the Atlantic, west through Texas and up the Pacific coast to Washington and is grown in USDA Zones 6

– 10. It is also found in Canada, Vancouver and Victoria and on the Queen Charlotte Islands. Nuts are available

in local markets in Chile.

Okari Nut:

The okari nut is a tropical tree, 20

- 30 m tall, with large, spreading crown and grey bark, native to the Aru Islands, and the Solomon Islands, where it is widely cultivated. The twigs are often massive, hairy when young, with leaves clustered towards the tips. The fruit is a large, ellipsoid, slightly flattened drupe, coat ed with short reddish

- brown hairs when young, red, fleshy, and glabrous when ripe, containing a massive woody, stone splitting on germination into two almost equal halves containing edible seed. The fruit is of great local importance, and said to have one of the best flavors of any tropical nut. The tree also has value for timber. It is usually grown in its native forests, often in a state of semi

- cultivation. Grows in lowland rainforests and riverine forests up to 1,000 m (3,280 ft) altitude. Easily p ropagated by seed, but the seeds have short period of viability. It is not produced in the U.S. but there are wild populations in Irian Jaya, the Aru Islands, Papua New Guinea and the Solomon Islands, where it is

cultivated. It has also been introduced i n Queensland and Australia.

Pachira Nut:

The pachira nut is a medium tropical tree up to 20 m (65 ft), often confused with P

. glabra and P. aquatica although they are not synonymous. It is native to the Caribbean,

and northern and western South Ameri ca. Leaves are 25.4 cm (10 in) long, palmately compound, and very dark green. Flowers are showy, with long red and white stamens. Fruit is a very large pod, up to 30.5 cm (12 in), brown, and shaped like a football. There are up to from 10

- 25 seeds per fruit with each seed being 2.5 cm in diameter. The seed is eaten whole, but little is known about its economic importance, although it is sometimes grown as an ornamental. It is propagated by seed, and adapted to swampy regions and shores of fresh water, but requires at least occasional drying. Grows in full sun to partial shade. It is not cultivated in the U.S. but is in the West Indies, Suriname, Venezuela, Bolivia, Colombia, Ecuador, Peru.

Peach palm nut:

The peach palm nut has multiple trunks that grows 20 to 30 meters (66 to 98 feet) tall. Native to Central America and Southwestern Amazonian including Northern Bolivia, Southeastern Peru and Western Brazil. Carbonized seeds of this palm date back 4,000 years. Stem diameter ranges from 15 to 30 centimeters (6 to 12 inches). The71

crown contains 15 to 25 dark green pinnate fronds. Leaflets of the fronds grow at different angles. Long strands of inflorescences occur among the axils of the senescent fronds. Separate tiny yellowish male a nd female flowers are contained within the same inflorescence. Fruits take three to four months to mature after flowering. The fruit is a drupe that varies in shape and grows in clusters of 50 to 1,000. One stem can contain 5 to

6 clusters of fruit. Ea ch fruit grows 2.5 to 5 centimeters (1 to 2 inches) long and weighs 10 to 250 grams (0.4 to 9 ounces). The skin is thin, fibrous and red, purple, orange, yellow or green in color. The humid, starchy/oily pulp is yellow to orange in color. Most

fruit con tain a fibrous/oily, white, conical

- shaped, 8 to 10 centimeter (3 to 4 inch) kernel. The flavor of the fruit is fruity to chestnut

- like. The seed is nutty, oily and has a coconut

like flavor. The aroma of the fermented pulp smells like ripe peaches. A typical bunch weighs 1 to 25 kilograms (2 to 55 pounds). Wild

- type fruit are rich in oils and domesticated fruit are rich in starch. Currently, the plant is most important in both Latin

American and world markets for its heart

- of

- palm. When it is grown for the hearts of palm it is grown in high density > 5,000 plants/A. This palm is the only domesticated palm in Tropical America. Flowering occurs year

- round in many areas. In areas where the dry season is less pronounced, two flowering periods occur an d fruiting occurs every six months. The fruiting season extends over a 2 to 4 month period. In Central Brazilian Amazonia, the main flowering season occurs from the mid

- dry season in August and September, to the beginning of the rainy season in November. In Costa Rica, the main flowering season occurs from May to July. In Brazil, fruit ripen from late December to late March and in Costa Rica, fruit ripen from August to October. Fruit production occurs in 3 to 4 years from seed. Palms require hot, wet tropical lowlands with deep, fertile, well

- drained soils, elevations of less than 1,000 meters (3,281 feet), abundant and

well

- distributed rainfall 2,000 to 5,000 millimeters (79 to 200 inches) per year), and average temperatures above 24 ° C (75 ° F). To lerates low

- fertility soils and short, 3 to 4 month dry seasons in non

- sandy soils. Does not yield well in dry conditions. Does not tolerate waterlogged soils. Propagation is mainly by seed. Seed should be obtained from healthy trees at the beginning o f the harvest season. Pulp should be carefully removed, seeds should be cleaned and sowing should occur in appropriate substrates with sufficient irrigation. Seeds germinate in 30 to 90 days. Seedlings should be placed in moderate shade. When palms are grown for fruit, the spacing is 5 by 5 meters (16 by 16 feet) or 400 plants per hectare. For heart

- of

- palm crops, plants should be grown in high density (> 5,000 plants per hectare), high input stands, where standard spacing is 1 by 2 meters (3 by 7 feet ). Because inflorescences develop in sequence on the stem, all bunches cannot be harvested at the same time. Fruit is harvested when the exocarp has 50% of its final color and the seed is mature. On spineless plants, fruit are collected by climbing the stem and lowering the fruit bunches to the ground with a rope or dropping them into a net. On spine

- producing trees, poles with hooks or curved knives are used to cut the fruit bunch. Currently, the plant is under

- utilized for its fruit. Fruit is sold i n markets cooked, fresh by the bunch or minimally processed. Processing includes removing the fruit from the bunch, washing it, waxing it, sorting it, and packaging it. Fruit do not store well and deteriorate within 3 to 7 days. Heart

- of

- palm of this pl ant is the principal source of heart

of

- palm in both Latin American and world markets. The seed is consumed fresh or cooked. It has been grown in Florida since 1920. It is cultivated throughout Central and Northern South America; experimental crops are found in Africa, Asia and Oceania. In72

2000, the estimated production in the State of Amazonas, Brazil was 13,600 tonnes of fresh fruit. In 2002 Colombian production was approximately 49,000 tonnes and Costa Rican production was approximately 10,500 tonne s. The total Neotropical production area is greater than 43,000 hectares (106,255 acres). Total Neotropical production is estimated to be 120,000 tonnes. The NAFTA Crop Production Region 13.

Pecan:

The pecan is a large tree, up to 30.5 m (100 ft) in height, and with trunk diameter up to 1.9 m (6 ft). I t is considered the most valuable native tree nut species of the lower Mississippi Valley and westward through Texas, into California and in northern Mexico. The fruits are generally oval, up to 6.4 c m (21⁄2 in) long, and fairly smooth. The outer husk is fleshy early, becoming fibrous and splitting open at maturity. The shells are relatively thin, hard and woody. The kernel separates rather readily. Improved varieties are widely cultivated. In addit ion, large quantities are harvested from native trees. Bloom to harvest 5 to 6 months, harvested in mid

- October. It is propagated by budding or grafting and it ranges from a warm temperate to subtropical climate. Trees are often planted at densities of 36

- 100 trees/acre, gradually removing alternate rows when crowding occurs, yielding final densities as low as 14 trees/acre. Trees are spaced at 56 x 56 ft spacings, giving 14 trees/acre, are accomplished by planting at 40 x 40 ft, then removing alterna te diagonal rows later. Tree require fairly large amounts of rainfall or irrigation, but can withstand dry periods due to a deep taproot. Some varieties lend themselves to dwarfing. It tales 5

– 9 years for the tree to begin its first significant

harves t. The number of nuts/lb varies from 48

– 71 depending upon variety. The U.S. is the primary pecan producer in the world. North Carolina is on the northern fringe of the U.S. pecan production region. Pecans are separated into two categories based on

in tensity of cultivation: improved and native and seedling. Improved pecans are produced from superior cultivars in orchard settings, while native and seedling production occurs largely from wild

- harvested native stands of trees in Oklahoma and

Texas. Ther e are over 1000 pecan cultivars documented in the literature, but only four make up over 50% of the orchard cultivation in the US:. 'Stuart', 'Desirable', 'Western', and ‘'Wichita'. Other production regions include Australia, Brazil, China, Israel, Mexico

, Peru, and South Africa. The NAFTA Crop Production Regions are 2, 3, 4, 5, 6, 8, 9, and 10, with 87 % in Regions 2, 4, 6, and 8.

Pequi:

The pequi is a large evergreen tropical tree from 35 to 40 m (131 ft) native to dry tropical woodland for Brazil and French Guiana. Planting rates are 100 trees per hectare (40 trees per acre). Leaves trifoliate and large; fruit is oblong and approximately 6 cm (2.4 in) in length. The fruit has a thin skin and a sweet fleshy pulp which surrounds the spiny pit. In side the pit is the nut, which is considered a delicacy. Both the fruit and inner kernel are eaten directly. The pequi is especially important to the indigenous73

people of the Brazil’s Cerrado region, and the fruit is a popular meal in several Brazilian

s tates. It is not produced in the U.S. but is grown in Brazil, Paraguay, and Bolivia. It is a tree up to 35 m, occurring in humid forests. Flowers hermaphroditic and in small clusters. The large coconut

- sized fruit, weighs about 3 kg and is 10

- 15 cm in diameter, is round or pear

- shaped, and greyish

- brown in color. It is covered with rust

- coloured lenticels. The outer skin is leathery and about 1 mm thick. Pulp of the mesocarp is oily and sticky, holding 1

- 4 hard, woody, warty stones (nuts), with tas ty reniform endocarp, which is eaten raw or roasted, and produces an edible oil. The wood is durable and used

for boat

- building. It is an effective healing balm if the oil of it's nuts are squeezed out right. it is a colourful tree, and very good for bur ning.

Pili nut:

The pili nut is grown in the Philippines and surrounding areas and grows to 20

– 25 m tall. The leaves, about 30.5 cm (1 ft) long, have 3 to 5 pairs of oval leaflets. The trees are dioecious, with flowers appearing in the axils of youn g leaves. Fruit is a drupe, oblong, black and appearing in clusters but is referred to as a nut. Each fruit is about 6.4 cm (2 1⁄2 in) long and 2.3

– 3.8 cm diameter with a hard, thin, shell around the kernel. The dry nut weight varies with cultivar from 8.68

– 13.77 g depending upon the cultivar. Requires moist, fertile, well

- drained soils and warm, tropical temperatures all year long with consistent rainfall. It is propagated from seed, although germination is often difficult. Trees begin bearing afte r 7

- 10 years. It takes from pollination to maturity

about 10 months. Pili are cultivated exclusively in the Philippines, which exports them primarily to Taiwan, Hong Kong, Australia, and Guam. Hawaii has shown interest in growing pili nuts. Shoots an d fruit pulp are also edible, and may be eaten locally or pressed for oil. The season to harvest is from May to October, peaking in July and August. It is not yet cultivated in the U.S. Approximately 4,900 tonnes (5,402 tons) were produced in 2005 and 5 0,000 trees have produced 3000 t of nuts (PCARRD.

Pine nut:

The pine nut is a tall, conifer trees, up to 12.2 m (40 ft), found in warm to cool temperate regions throughout North America, Europe and Asia and usually in dry areas. These pines have stout branches, and varying needles. Cones are near globose or broad ovate, compact until mature and weigh up to 300g and be 15 mm long. Cones can contain 120 hard shelled seeds each about 0.65 g. Seeds are about 1.3 cm (1/2 in) long, elongated and angular. It is propagated by seed or vegetatively by grafting. They are eaten directly, also used in confections under the name pignolia. The trees are not cultivated in the U.S., but gathered and sold in local markets. The U.S. also imports pine

nuts from China and Italy, where they are cultivated commercially. All species of pines have edible seeds, but only a few are considered large enough to be worth gathering or cultivating; the Korean Pine being the most widely traded. After the fall frost, mature

cones open and the nuts fall to ground. .Average production is from 600

– 1400 kg/ha and can reach 9,000 kg/ha of in shell nuts. It is mainly grown in the southwestern U.S.,74

363

- 454 tonnes (400

- 500 tons) per year (AGMRC) and in NAFTA Crop Production Region 9. It is also produced in China, Italy, Spain, and Portugal. Production in South Korea in 2007 was 1,360 tonnes (1,500 tons) and in 2006 (MAF 2007).

Pistachio :

The pistachio tree is small, up to 9 m (30 feet), and spreading. It is native to temperate W estern Asia and the Middle East, but has been introduced and cultivated in many other subtropical areas. It is a deciduous plant that thrives in climates offering cool, wet winters and long, hot, dry summers. It is tolerant of a wide range of soils but

p roduces best on well

- drained, deep, light sandy loams with high lime content. Though of desert origin, mature trees in commercial production have a high water requirement. Pistachio trees are alternate bearing, producing a large crop one year and a small er crop the next. Being wind pollinated, one male tree is planted for every 8 to 24 female trees, which produce the nuts. Pistachio trees are dioecious, meaning that there are separate male and female trees. The fruit is ovoid to oblong in shape, an inc h or less long. It has an external, fleshy hull which loosens from the nut at maturity, but must be removed either by hand or mechanically. The nut has a thin, woody shell, which often partially splits when ripe. The kernel is small and smooth, rich fla vored and green in internal color. An important crop in the U.S. and several Middle Eastern countries, and is popular as a snack and a flavoring. The time between blooms to maturity is about 5 months. The annual pistachio growing season begins in late M arch when buds formed the previous summer begin to swell. Bloom occurs in April, with foliage and shoots growth then emerging in early May. During May, the shells expand inside the hull. By June when the shells have reached full size, they begin to hard en. However, the nuts within the shells have not yet developed; nut

- fill typically occurs during July. Upon completion of nut

fill, the enlarged nut causes the shell to split naturally. The hull, the protective covering over the shell, remains intact, b ut removes easily when pinched. The crop is ready for harvest when the nuts fall easily as the cluster is shaken. Harvest is timed to obtain the maximum number of split nuts, usually beginning in early to mid

- September. It is propagated by seed or buddin g and is difficult to transplant. Rootstock seeds are germinated in January, grown for fifteen months in pots, and sold to growers for planting in orchards during early spring; budding is performed in midsummer. The young, nonbearing tree is trained to t he adult tree shape for 5 to 7 years and begins producing small crops at 5 to 6 years. Requires a sheltered, warm growing location and moist, well draining soil. One male tree should be planted per seven or eight females to insure fertilization, and tree should be spaced at least 9 x 9 m, with irrigation. Most commercial orchards in California are planted to square or triangular arrangements with a variety of spacings, 11 to 30 ft between trees. Many growers use filler trees at spacings of 11

- 22 x

22

- 24, removing every other row at 12

- 15 years. Training is open center or modified leader. Trees do not bear fully until 20

- 25 years old (although fruiting can begin as early as 7 years old), and have a fruiting life of up to 60 years In the U.S. it is produced in California and Arizona (NAFTA Crop Production Region 10). California entered the world pistachio market in 1976 with its first commercial crop of 1.5 million pounds75

grown on less than 1,500 acres. California pistachios are of the ‘Kerman ’ variety. Other production regions include Iran, Turkey, and Pakistan.

Sapucaia nut:

The sapucaia nut is a large tropical tree native to Brazil, closely related to the monkey pot. Trunk has well developed buttresses and deep fissures in the bark, a nd the fruit has a large woody shell (capsule), in the shape of a pot, which contains the seeds. When ripe, the capsule splits open with a loud noise, attracting the attention of the local monkeys, who value the seeds as food. Sapucaia nut is consider ed to be superior in flavor to the Brazil nut, and was introduced to Trinidad as a possible commercial crop in the early 20 th
century, although it did not meet with much success. It was sold at one time in New York under the name paradise nut. It requ ires a moist tropical climate. It is no t cultivated in the U.S., but is in French Guiana, Guyana, Suriname, Venezuela, Brazil, and Equator.

Tropical almond:

The tropical almond is a large deciduous tree, 15

- 25 m tall, found in moist, coastal

areas of tropical Southeast Asia. It has opposite, simple, obovate, leathery leaves that grow in whorls. Bark is brownish

- grey and smooth; flowers are small, greenish white, and grow in spikes of 15

- 20 cm, which arise from the axils of the leaves. It is gr own for its edible nut. The fruit is the size of a plum (2.5 cm wide by 2

– 6 cm long and weighing 40 g) with tender skin and juicy edible pulp. The nutmeat is edible, fresh or roasted. It also yields edible oil and the meal is fed to pigs. In some pla ce fruits are harvested constantly; while in India two harvests a year in spring (April

- May) and in the fall (October

– November). It is propagated from seeds, usually planted 25 cm apart, and germinates in about 20 days. Seedlings may be replanted aft er the following rainy season and it requires good drainage. Prefers coastal areas in the moist tropics, and although it is not yet grown on a commercial basis in the U.S. it will grow in southern Florida. It is native to Southeast Asia and is widely cul tivated and naturalized in tropics. It can be produced in the NAFTA Crop Production Region 13.

Walnut, black:

Black walnut trees vary from small, up to 6 m (20 ft), to very large, near 45 m (150 ft) tall. In the U.S. they are widely distributed and ar e of several species and are the largest of the North America walnuts. Black walnut typically grows as scattered individual trees or in small groups throughout the central and eastern parts of the United States. Although it is found on a variety of sites , black walnut grows best on good sites in coves and well

drained bottoms in the Appalachians and the Midwest. Its natural range extends from western Vermont and Massachusetts west through New York to southern Ontario, central Michigan, southern Minnesota , eastern South Dakota and northeastern Nebraska; south to76

western Oklahoma and central Texas; excluding the Mississippi River Valley and Delta, it ranges east to northwestern Florida and Georgia. In all, the nuts are encased in a semi

pulpy husk, which d oes not separate from the nut readily. The nut shell is thick and very hard. The kernel does not separate from the shell readily. Only the American or Eastern black is in any cultivation, and commercial cultivation of that kind is limited. Substantial quantities of the latter are gathered from native trees and marketed, mainly after shelling. About 80% by weight of nut is shell. Ground shells are used in industry as an abrasive, and in oil and gas drillings. Shell produces a dark, staining liquid whi ch often make harvesting difficult and messy. The nuts ripen in September and October. They are propagated on by grafting, transplant in early spring. Temperate climates and fertile, well draining soils, often in river plains and bottomlands. Seedlings emerge in April or May the first or second spring after the seed is planted. On deep, rich, moist soils in coves or

well

- drained bottom land, seedlings may grow 91 cm (36 in) the first year and even more the second growing season. Black walnuts begin be aring anywhere from 3 to 10 year after planting, depending on variety. Alternates heavy and light bearing years. The growing season within the range of black walnut ranges from 140 days in the north to 280 days in western Florida annual precipitation is less than 640 mm (25 in) in northern Nebraska and 1780 mm. (70 in) or more in the Appalachians of Tennessee and North Carolina. Depending on latitude, black walnut flowers generally begin to appear about

mid

- April in the South and progressively later unti l early June in the northern part of the natural range. The large edible nut ripens in September or October of the same year and drops shortly after the leaves fall. Good seed crops are produced irregularly, perhaps twice in 5 years. Open

- grown trees may produce some seed when only 4 to 6 years old, but large seed crops do not occur until the trees are 20 to 30 years old. At 10 years of age, a Midwest plantation produced 28 kg of hulled nuts per hectare (25 lbs/acre), and by age 12 production had increas ed to 112 kg/ha (100 lb/acre). Best seed production begins when the trees are about 30 years old and continues for another 100 years. Seed is disseminated only short distances by gravity and animals. Within black walnut's optimum range, the average annu al temperature is about 13 C (55 F), the frost

- free season is at least 170 days, and the average annual precipitation is at least 890 min (35 in). It is also cultivated in Europe for timber. Approximately 9,070 tonnes (10,000 tons) are harvested annually in the U.S. Other production regions for black walnut are Eastern Canada, Texas, and Mexico. It is grown in NAFTA Crop Production Region 5, EPA reports walnuts as black walnuts and English walnuts with 98% grown in Region 10.

Walnut, English:

This species is the principal walnut of commerce. The trees attain heights up to above 15 m (50 ft) unless restricted by pruning. It is native to the Balkans, Kyrgyzstan, and southwestern China, walnut is now grown in Europe, the U.S, South America, and

Chin a. Fruits are near globular to oblong, with a smooth surface, borne at the terminals of shoots. The husks surrounding the nuts are semi

- fleshy and generally dehisce at maturity, allowing the nut to drop out or to be readily separated. The shell is hard but generally thin, and the kernel separates from it readily. About 50% by weight of nut is

shell. Season for bloom to maturity is about 5 months. It is propagated by grafting, and77

requires a well drained, loamy, alluvial soil. Temperatures as low as

- 29 ̊ C can be

tolerated. Carpathian walnut cultivars are cold hardy cultivars of J. regia which can be grown outside of California, in the Pacific Northwest or the mid

- Atlantic and southeastern USA. ‘Cascade' has largest nuts with up to 56% percent kernel, and is rated #1 by the North American Nut Grower's Association. The Persian walnut cultivar ‘Hartley' is an old, terminal bearing but productive cultivar, and as of the mid 1990's, was still the major cultivar in terms of acreage. It produces large nuts with light kernels and attractive shells. Other "Payne

- type" cultivars popular in California are ‘Chandler', ‘Serr', ‘Vina', ‘Ashley', ‘Tehama', ‘Pedro', ‘Sunland', and ‘Howard'. Yield averages over 3000

lbs/acre. The s pacing depends on variety and t ra ditional orchards are usually planted at

densities of 50

- 70 trees/acre initially, and thinned to 30

- 50 trees/acre (30 x 30') or 40 x 40') as crowding occurs over time. Pollinizer cultivars are planted in solid rows (cross

wind) at selected intervals, usually 10%. Hedgerow orchards of lateral bearing cultivars can be planted at higher densities (100 trees/acre) and do not require thinning of trees since regular hedging and topping maintains trees size. Walnuts begin bearing in 5

- 6 years for some of the newer varieties. Flowering occurs in the spring from mid

- April to

mid

- May depending upon the cultivar. The nut is harvestable 19

– 22 weeks after bloom. Many of the English walnuts can hybridize with other Juglans spp. The U.S was the second larges t produces in 2006 of walnuts with 308,440 tonnes (339,901 tons) on 87,075 hectares (215,075 acres). Other primary producing countries in 2006 included China, Iran, Turkey, and Turkey. Production in South Korea was 770 tonnes (850 tons) in 2006.

The NAFT A Crop Production Region is 10.

Yellowhorn:

Y ellowhorn is a deciduous small tree or tall shrub native to northern China, reaching 8 m (26.2 ft) in height. Leaves are alternate, 12

- 30 cm (4.7

- 11.8 in) long, pinnately divided with 9

- 17 leaflets that are sharply serrated. The tree produces large quantities of 2.5 cm (1 in), 5

- parted white flowers in May with pink centers borne in heavy racemes. The tree is sometimes planted as an ornamental in temperate climates due to the stunning flower display, and it s fruit is an edible leathery capsule containing a number of black ellipsoid seeds, about 1.5 cm (0.6 in) in diameter each, which resemble

horse

- chestnuts. When roasted, the seed kernel is said to taste like a macadamia nut and

have a sweet flavor. The f lowers and young leaves are also edible, and edible oil is produced from the nuts. It prefers a well drained soil in sunny location. However, it can be damaged by a late frost in the spring. It can begin flowering after only 2

- 3 years

when the tree is only 0.6 m (2 ft) tall. It is available locally where it is grown mostly in Chuna and Korea and is sold in the U.S. both as an ornamental and tree nut crop.78

WORKER ACTIVITIES: (Adapted from USDA Almond, Pecan, Pistachio, Walnut, Crop Timelines and Crop Profiles (CA, AK, GA, KS, LA, NC, OR and Walnut Production Manual, Mosz, 2002 ) and Hazelnut ( Oregon State University Extension Agent and the Nut Growers Society Proceedings)

.

Almond:

In California, almonds begin blooming in mid

- February and th e orchards receive frost protection by close mowing or herbicide treatment of the orchard floor. Most

activities in the almond orchard are mechanized. Hand activities that continue to occur are pest management monitoring, which occurs from February throu gh August and is often conducted by a commercial pest management company, and pruning, which occurs between October and December, with much taking place soon after harvest. Worker activities that were once done by hand labor are now mostly mechanized, inc luding harvesting and knocking mummies, which is the removal of unharvested nuts that remain on the tree. Mummy nuts are often removed from the trees with the same shakers used in harvest, but some hand poling still occurs, especially in younger trees tha t may be damaged by shakers. Commercial applicators and large growers are more likely than small growers to have closed

- cab tractors.

Orchard floor preparation is also important for an efficient and successful harvest. Preparing the orchard floor, begin ning before bloom and continuing until just before harvest, consists of mowing as the weeds get 6 to 8 inches high, spraying herbicides as needed, and removing debris before harvest. Discing to even out the high and low areas

in the floor in cultivated or chards, also occurs before harvesting.

Mechanical harvesting of almonds begins with a shaker, a tractor mounted apparatus that grips and shakes the trunk or limbs, causing the nuts to fall to the orchard floor. A mechanical shaker operator can shake bet ween 70 and 150 trees in an hour. Occasionally, when economically feasible, the trees will be poled to knock additional nuts off the tree. This operation involves little contact with the tree and the person poling stands in the middle of the row, not dir ectly under the tree. After the nuts fall to the orchard floor, they are allowed to dry for seven to fourteen days. Mechanical sweepers move the nuts into windrows, which are then gathered by a pickup machine. The mechanical sweepers and pickup machines both require a driver to sit outside to drive but there is no physical contact with the trees. For the sweepers, there is a rotating rake to bring the nuts into windrows, and a blower in back to blow the nuts from the tree row into the opposite middle. Workers may enter the field to rake any remaining nuts away from the trees, if there is a good price expected for the crop that year.

Irrigation practices influence other management techniques in an orchard and the pests likely to be present. Surface irr igation, typically flood and furrow irrigation systems, requires a relatively flat or slightly sloped orchard floor. Tillage is more likely to be used in fields with this type of irrigation. The spread of pests, such as weed seeds,79

may occur with surface irrigation. Sprinkler and localized irrigation systems, such as

micro

- sprinkler and drip, may be used in areas of low water supply or uneven terrain. Ants may become more of a problem as the use of localized irrigation increases because localized irriga tion allows unsaturated areas to develop on the orchard floor. Many diseases, such as brown rot, almond scab, shot hole, and anthracnose, may be worse in areas with sprinkler irrigation systems if the water reaches the leaves or nuts. In most of

the stat e drip, micro

- sprinkler, or sprinkler irrigation systems are more likely to be used, whereas in the northern San Joaquin Valley, flood irrigation may be used more often because surface water is more readily available.

Pesticides may be applied from the gr ound or air but ground applications, which are more common, are usually done with an air blast sprayer. Typically between 24 and 60 acres can be sprayed in a day, but the number of acres may vary from this range for several reasons. Variations in ground speed, coverage, and the number of gallons of pesticide used per acre will also affect the number of acres that can be sprayed in a day. Usually about 100 gallons of solution are applied per acre, with loads of about 500 gallons per sprayer. Aerial applic ations are useful when there is not full foliage on the tree, such as in the dormant season, and to apply fungicides early in the spring. Aerial applications of insecticides may be used to manage the navel orangeworm since hull

- split begins with the upper and outer portions of the tree. Aerial application may be done with a fixed wing airplane or helicopter, but helicopters are used more often for orchards because they can fly slower, providing better coverage of the trees.

The yearly activities for a farm worker in almonds are shown in Table 22. Scouting for pests is done from January through September. Insecticide may be applied almost the whole year while herbicides are used in January, July

– August, and fungicides may be applied depending on the scouting reports every month except October.

Table 22. Typical Yearly Worker Field Activities for Almond Production (Mosz, 2002). Activity J

A

N F

E

B M

A

R A

P

R M

A

Y J

U

N

E J

U

L

Y A

U

G S

E

P

T O

C

T N

O

V D

E

C

Pruning X Fungicide applications X X X X X X X X X X X Insecticide applications X X X X X X X X X X X Herbicide applications X X X X X Irrigation X X X X X Scouting for pests X X X X X X X X X Mowing X X X X X X X

Harvest X X X Wildlife damage control X X X X X X X X X80

Hazelnut:

The Hazelnut Production Calendar is prepared each year by the Oregon State Extension Agent (Table 23). It includes all worker activities as well as pest problems that may cause significant losses.

Table 23. Hazelnut Production Cal endar (Adapted from Jeff Olsen, Oregon State University Extension Agent and the Nut Growers Society Proceedings



### .

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Activity

X X X Pruning

X X Fertilizing

X X Moss and Lichen

X X Winter Moth

X X X X X X Flail to Control Weeds

X X X X X Cultivate

X X X X Weed Control

X X X X X Sucker Control by

herbicide

X X X X X X X Scouting for pests

X X Omnivorous Leafier

X Foliar Boron Application

X X X X Aphid Control

X X Leafroller Control

X X X X Obliquebanded Leafroller

X Sun Scald Protection

X X Filbertworm

X X Bacterial Blight Control

X Leaf and Soil Analysis

X X Pre

- Harvest Care

X X Harvesting

X X X Eastern Filbert Blight

Hazelnuts must be pruned in January

– Febr uary and December to assure maximum yields. An additional benefit of proper pruning will be less limb breakage from ice81

and snow. Nitrogen fertilizer should be applied as urea in March, coinciding with

bud break.

Moss and lichen growth must be control led in March and November to prevent limb breakage due to heavy snow and ice buildup. T he flail is used on orchard groundcover beginning in late April or early May, to chop the vegetation down to the surface of the soil. The flail also helps chop up leav es and small twigs in the spring as well as early drops of blank nuts before the harvest period.

Some growers use herbicides to delay or kill growth in the alleys to reduce the

number of times the orchard floor is flailed. Flails that are 8 to 9 feet wide and a tractor with at least 40 hp are commonly used. It's sometimes desirable to flail after harvest to mulch leaves and eliminate old crop nuts, which can attract rodents. Weed control is usually associated with the flailing program where herbicide s are banded down the tree row. Sucker Control is done from April through August. Most

growers use chemicals for the control of suckers, spraying when the suckers are six to nine inches tall, and can require three to four treatments per year.

Pest prob lems include the omnivorous leaftier which hatch from over

- wintering eggs in April and May and are carried into orchards by the wind on silken threads. Larvae feed on developing buds, often resulting in destruction of the terminal growth. This feeding re sults in malformed trees and a delay in overall tree growth. The key to control is early detection by scouting early and applying a preventive treatment. Heavy infestations of leafroller may result in yield reductions. Spraying is done in late April or early May to control this pest. The obliquebanded leafroller larvae feed on developing nuts resulting in stained, misshapen and aborted nuts. There are two generations a year, one in mid

- June and the second generation of moths emerges in September. Filb ertworm control is an annual problem and in many cases must be sprayed for each year. Treatment dates are usually close to July 10 and again about three weeks later. Filbert bacterial blight is a serious disease problem seen mostly in

young trees up to s ix years in age. Eastern filbert blight causes small football shaped pustules that line up vertically on infected branches. There are two main scouting times for this pest late summer and winter.

Before harvest one last flailing just before solid nuts begin to drop in early September will grind up blanks and twigs that have dropped and will put the orchard floor in a proper condition for harvesting. A ll commercially grown hazelnuts are harvested mechanically. Sweeping is the first process which shoul d clean the tree row with air blast or mechanical fingers and deposit the nuts in a narrow windrow in the center of the row. A harvesting machine follows which lifts and separates the nuts from the leaves, twigs, etc. and deposits them in a tote box or tr ailer. Some growers use trailers with bottom drops that they open over drop pits. The nuts are conveyed out of the pit and into bulk trucks for delivery to the cleaning and drying plants. If totes are used, a third person follows on a fork lift tractor to move tote boxes out of the orchard. This type of operation can harvest around 15 acres of orchard per day.82

Peach Palm Nut:

Peach palm nut activities in Florida consist mostly of fertilizer applications, irrigations, and or scouting and treating for pests (Table 2 4 ).

Table 24. Peach Palm Nut Production Calendar in Florida (Adapted fromJ. Crane.

2006. Pejibaya (Peach Palm) Growing in the Florida Home Landscape. Univ FL IFAS Cooperative Extension Service Publication HS 1072).

Activity Jan Feb Mar April May June July Aug Sept Oct Nov Dec

Fertilizer and add

micronutrients/iron as needed X X X X

Irrigation during dry periods X X X X X

Scout for insects and treat if

necessary X X X X X X X X X X X X

Scout for diseases and treat i f

necessary. X X X X X X X X X X X X

Pecan:

In Arkansas, pecans are managed by removing competing trees and shrubs; thinning of pecan trees to retain trees with highest production, best nut quality and highest disease resistance; establishment of a cool season grass and legume ground cover under trees and fertilization. Most acreage of native pecans is harvested mechanically although significant production is hand harvested by small growers. Occasional pruning is performed in the dormant season. P reemergent herbicide applications are applied in early spring, primarily with tractor mounted spray equipment. Postemergence herbicide applications are made in early summer and occasionally after harvest primarily with tractor mounted sprayers although ba ckpack sprayers are occasionally used. Row middles are mowed during the growing season. Insecticides and fungicides are applied from early spring up to harvest primarily with orchard blast sprayers. Management of weeds in native pecan groves consists of mowing the permanent ground cover and/or grazing by livestock. Weed control in pecan orchards with improved varieties is more intensive and is required for attainment of maximum yield.83

In Georgia pesticides may be applied from early April until late S eptember (Table 25). Insecticides and fungicides are typically applied throughout the season. Fungicide application usually ends in early August. Pesticides are applied with air blast sprayers mounted on a truck or pulled behind a truck or tractor in en closed cabs. During the season, workers may be present in the orchard to apply pesticide, scout, or to pick up fallen limbs. Orchard workers do not come in contact with pecan foliage. Uncontrolled weeds interfere with tree growth and irrigation and harv esting, so a clean orchard floor makes it efficient for efficient harvest of nuts. Most operations use a tractor

- mounted hydraulic tree shaker to dislodge nuts from the trees, and the fallen nuts are commonly windrowed and swept up from the ground by mech anical sweepers and harvesters and

then the nuts are swept into rows on the ground for mechanical pickup. Bare soil or closely mowed grass makes this system possible. Herbicides are primarily used control

weeds under the trees.

Table 25. Typical Year ly Field Activities for Georgia Pecan Production (www.tifton.uga.edu/uga.pecan). Activity J

A

N F

E

B M

A

R A

P

R M

A

Y J

U

N

E J

U

L

Y A

U

G S

E

P

T O

C

T N

O

V D

E

C

Pruning X X X X

Plant trees X X
Fertilizer, Lime X X X X X X X X

Plant nuts X X Fungicide applications X X X X X X Insecticide applications X X X X Herbicide applications X X X X X Irrigation X X X X X Scouting for pests X X X X X X X Mowing X X X X X X X

Harvest X X X

Wildlife d amage control X

In Kansas primary worker activities include irrigation, fertilizer application, pesticide sprays, pruning, thinning, and harvesting. Majority of pecan trees are harvested in this region with machine. However, hand

- harvesting by knocking the pecans out of the tree with a pole and then picking the nuts off the orchard floor may serve as a complementary approach on a small scale. Pruning and tree thinning are very common management practices that prevent crowding of the pecan t rees and enhance the production of high quality nuts. Generally, pecan orchard floor management in Kansas consists of mowing a permanent ground cover and/or grazing by livestock. Cool season grasses and legumes are often planted in pecan groves to increa se forage production. n native pecan groves, vining weed species that can climb trees and compete within the tree’s canopy for light are serious crop limiting pests, and includes poison. In orchards of84

young trees, a six

- foot, weed

- free circle is often m aintained around each tree. Weed pests include trumpet creeper, riverbank grape, Virginia creeper, and raccoon.

In Louisiana pruning of pecan trees is performed in the dormant season. Postemergence herbicide applications are made in early summer and occasionally after harvest primarily with tractor mounted sprayers although backpack sprayers are occasionally used. Row

- middles are mowed or grazed during the growing season. Insecticides and fungicides are applied from early spring up to harvest primari ly with orchard blast. Mechanical tree shakers followed by a mechanical ground harvester are utilized by a majority of growers. A vegetation free strip prepared by using post

emergence herbicide applications are made in late winter and early summer with tractor mounted sprayers although backpack sprayers are occasionally used. Row middles are mowed during the growing season. Insecticides and fungicides are applied from early spring up to harvest. Mechanical tree shakers followed by a mechanical ground harvester are utilized by a few growers. During the growing season there is very little orchard activity where workers come in contact with the foliage of the pecan trees since most tasks are mechanized or done in when pesticides are not applied.

In No rth Carolina postemergence herbicide applications are made in late winter and early summer with tractor mounted sprayers although backpack sprayers are occasionally used. Row

- middles are mowed during the growing season. Insecticides and fungicides are ap plied from early spring up to harvest. There is very little orchard activity during the growing season where workers come in contact with the foliage of the pecan trees in Texas and North Carolina. P ecan trees can grow and produce quality nuts

for decade s with minimal effort and expense. Some commercial pecan plantings in North Carolina are well over 75 years old and still very productive. In years when a full crop is obtained, North Carolina produces 5 to 6 million pounds of pecans annually. The level of production ranges from several trees in the backyard to commercial orchards with 20

acres or more.

Pistachio:

Pistachios need rapid processing upon harvest is crucial to resulting nut quality, so the industry works around the clock for the six to eight weeks of harvest. Mature pistachios require care throughout the year. During the growing season, April through October, they require fertilization, irrigation; weed control for the orchard floor, insect and bird protection for the nuts, and disease control for the foliage and roots (Table 26). During the dormant season, November through March, they require pruning to generate new fruiting wood and to maintain tree size.

Table 26. Typical Yearly Worker Field Activities for Pistachio Production (M osz, 2002).85

Activity J

A

N F

E

B M

A

R A

P

R M

A

Y J

U

N

E J

U

L

Y A

U

G S

E

P

T O

C

T N

O

V D

E

C

Pruning X X Irrigation X X X X X X X Scouting for pests X X X X X X X X X Mowing X X X X X X Fungicide applications X X X X X X X Insecticide applica tions X X X X X X X X X Herbicide applications X X X X

Harvest X X Wildlife damage control X X X X X X

Walnut (Walnut Production Manual):

In California non

- cultivation of orchard soils with herbicide

- treated tree rows is

c ommon, and mechanized winter pruning is practiced and well suited to these sod orchard floor techniques with drip, micro, and sprinkler irrigation. Typical worker activities for walnuts are shown in Table 27. Irrigation is necessary in California walnut orchards to be economically feasible. A smooth orchard floor is necessary to facilitate harvest of walnuts that are shaken to the ground, swept into a windrow, and picked up with pickup machines. Some orchards are disked and rolled before harvest to insur e a smooth, firm surface for harvest. Harvest takes place starting in late August and occurs through mid

- November. Nuts are removed from the trees with a mechanical shaker, which is an apparatus that is driven into the orchard, clasps a trunk or limb and shakes, causing the nuts to fall off the tree. The shaker has a cab to prevent injury to the driver,

and newer shakers have closed cabs that are air conditioned and air filtered. After the nuts drop, they are swept into windrows by a mechanical sweeper, a small piece of equipment that is not closed

- cab. The sweeper has a rotating rake to bring the nuts into windrows, and a blower in back to move the nuts from the tree row into the middle of the adjacent windrow. Workers may enter the orchard to remove sticks from the nuts to make pick up easier. The pickup machine, or harvester, is not typically closed

- cab. As the equipment picks up the nuts, debris and dust are blown out. Once the nuts drop, all harvest operations are completed within a day because nut quality decreases if left on the ground. Hand harvesting with poles may be used for walnut trees that are younger than eight years old.

Walnut trees are hand pruned in the dormant season. Trees up to three years old are pruned from the ground, whi le older trees are pruned every two to three years by hand with a person standing on a hydraulic tower to reach the limbs of the tree. The trees may be trained into hedgerows, a row of trees grown close together as a unit, but this is not a common practic e. Young trees, up to three years old, are pruned in the summer to train them. Other activities requiring hand labor also occur in the orchard such as in late March, insect traps, used to determine the level of pest infestation, are placed in the86

orchard . Hand hoeing weeds may occur in young orchards throughout the season as needed. The nuts are removed with mechanical shakers, the same equipment used for harvest, which enter the field to shake the trees after a heavy fog or light rain has made

the waln uts overly heavy. Some areas rely on wind and rain throughout the winter to remove the nuts. The nuts are mowed to destroy them. Equipment operators are the only people in the orchard during this process (Van Steenwyk, 2001; Grant, 2001).

Although the use of tillage has declined in recent years, many growers still use tillage in the orchards to control weeds. Even in orchards that are typically not cultivated growers may occasionally use tillage to improve water penetration. Pesticides are applied fro m the ground or air. Ground applications are more common in part because they are less expensive and coverage of the trees is better, are usually done with an air blast sprayer, although herbicides are applied with a ground boom sprayer. The sprayers

may be self

- powered or pulled by a tractor, which may or may not have a closed cab. Typically between 24 and 60 acres can be sprayed in a day and the number of acres may vary from this range. Aerial applications are useful if soil conditions prohibit ground machinery from entering the field, and aerial applications are able to cover a large area more quickly than ground sprayers. Aerial applications may also be necessary if the trees are too large to be completely covered from a ground application. In this case, both ground and aerial applications would be made to fully cover the trees. In 1999, approximately ten percent of total pesticide applications were applied aerially.

Table 27. Typical Yearly Worker Field Activities for Walnut Production (Mosz, 2002). Activity J

A

N F

E

B M

A

R A

P

R M

A

Y J

U

N

E J

U

L

Y A

U

G S

E

P

T O

C

T N

O

V D

E

C

Pruning X X Irrigation X X X X X X Scouting for pests X X X X X X X X X Mowing X X X X X X X X Fungicide applications X X X X X X X X X X Insecticide applicat ions X X X X X X Herbicide applications

Harvest X X X X Wildlife damage control X X X X X X X X

Pollination of Tree Nuts. (Adapted from Russell Goodman, 1994. Honeybee Pollination of Fruit Tree Crops. AG 20092)

.

Speci fic pollination requirements for the tree nuts are:87

Almonds are self

- incompatible and require cross pollination. Pollinators such as honey bees are essential, especially since cool, wet weather can occur at the relatively early blooming period.

Cas hew trees are least partially self

- fruitful, as single trees can bear many fruit. Various insects, flies and ants provide pollination.

The chestnut is wind pollinated and insect to a lesser extent; most chestnuts are self

unfruitful, and some set burs parthenocarpically without pollination but pollinizers are necessary in most cases.

Since coconuts are protandrous, they are believed to be largely cross pollinated. Dwarf cultivars, particularly the popular ornamentals, are largely self

- pollinating as opposed to the ‘Tatwell’ cultivars of commerce which rarely pollinate themselves.

Coconut trees are planted in rectangular or hexagonal arrangements, with separate rows of pollinizers and main cultivars, usually alternating with each other. Solid rows of pollinizers are used since trees are shaking harvested, and this makes it easier to harvest without mixing cultivars. Trees are trained to an open center shape in the first year.

Hazelnuts are m onoecious, and the female flowers are borne in head

- li ke inflorescences terminally on short shoots developing from lateral buds on 1

- yr wood borne on current season's growth. Male catkins are borne from unmixed lateral buds on

1

- yr wood but most hazelnuts are self

- unfruitful. The f

lowering habit is unusual because

both male and female flowers are initiated the summer prior to harvest. Female flowers lack perianth and ovaries at the time of pollination in mid

- January to mid

- February; the pollen tube grows to the base of the style and becomes quiescent until 5

- 6 months later (June), when the ovary and ovule develop. Fertilization then takes place in July, and the nut rapidly develops, maturing by late August.

Macadamia nuts need bees to pollinate the crop since cross

- pollination is necessary for full pr oduction, but the degree of self

- incompatibility varies. The tree spacing depends on growth habit of the cultivar and the use of filler trees. Final spacings of 30 to 35 feet apart are typical. Closely spaced hedgerow orchards are sometimes used in

Aust ralia, with trees planted at 10 × 20 feet and later thinned to prevent overcrowding.

Macadamias are trained to a central

- leader framework over a period of several years, as they grow slowly.

Pecans the period of time over which pollen is shed commonly d oes not coincide with the period of female flower receptivity to pollen. So, pecans often require another cultivar for pollination since the timing of the male and female functions is different on a given tree. This condition is referred to as dichogamy and is common in trees in the Juglandaceae family. The two possible forms are protandry (means "first male"), where pollen shed begins before the female flower becomes receptive, and protogyny (means "first female") where the female flower becomes receptiv e before pollen shedding begins. A good pair of cultivars for cross pollination contains both a protandrous and a protogynous cultivar. In most cases, there is some overlap in the functional periods,88

allowing for some degree of self

- pollination. Pollina tion requirements for pecan trees differ from all other tree fruit crops. Pecan trees are monoecious, which means that they have separate male structures, called catkins, and female flowers on the same tree. However, the time at which the male catkins re lease pollen is not the time at which the female flowers can be pollinated. Pecan trees are separated into two pollination groups referred to as Type I and Type II. Catkins on Type I trees release their pollen before the female flowers are receptive and c atkins on Type II trees release their pollen after the female flowers are receptive. Because of this difference, both Type I and Type II pecan trees are required for pollination. To ensure maximum pollination and therefore, production, at least three var ieties should be planted together. As a general rule, 10% of the trees should be pollinizers. In isolated orchards, two pollinizers are needed

- one early and one late. Pecans, walnuts, and other members of the Juglandaceae are wind pollinated, and the p ollen may travel for miles on a strong wind. The best month for planting new pecan trees is January. In order for the pecan nuts to be properly pollinated, at least three different varieties should be planted. Though they are only about five to

seven fe et tall when planted, pecan trees get very big over time, so they need to be spaced about 70 feet apart. About 6

- 9 trees are planted on one acre. Each year the tree will grow about 10 to 12 inches, and pecans will only develop on the new growth. It t akes several years before pecan trees start producing pecans. Most new and improved varieties begin to produce pecans within five to six years, but older, traditional varieties take longer

Pistachios are wind pollinated, and although bees may be attra cted to male flowers for pollen, they are not attracted to females since they lack pollen, nectar, and petals. Pollinizers (males) are often planted in the center of a 3 x 3 square of females, yielding an 8:1 ratio, or sometimes ratios up to 24:1 are used

.

Walnuts are similar to pecans in that the time of pollen shedding does not always overlap well with the time of female flower receptivity to pollen. Although most walnuts

are self

- fertile, they sometimes require another cultivar for pollination since the timing of

the functions of male and female flowers is different. As with most catkin

- bearing species walnuts are wind pollinated. All walnut varieties will set a full crop of nuts when self pollinated, provided pollination takes place when the femal e flowers are receptive.

Self

- pollination means that the pollen comes from male flowers (catkins) of the same variety, but not necessarily the same tree. Inadequate pollination may occur because the catkins shed pollen either before or after the female f lowers are receptive. In such cases, it is necessary to plant a pollinizer variety that sheds pollen during the peak period of female blossom receptivity of the main variety.

COMPARISON OF HARVESTING, PROCESSING, POSTHARVEST HANDLING, RAW AGRICULTURAL C OMMODITY (RAC), EDIBLE PORTIONS, AND PROCESSED FOOD ITEMS FOR THE TREE NUTS:

Maturity and Harvesting of Tree Nuts:89

Almond:

In California, trees are harvested by mechanical tree shakers. Young trees may be damaged by shakers, so are harvested by hand k nocking in the first few years. Nuts are then left to dry on the ground for 1

- 2 weeks, then swept into windrows for harvesting.

Cashew

The cashew apple and nut abscise from trees naturally when ripe. Maturation occurs over a period of several week s during the dry season. Nuts are collected from the ground by hand. Frequent passes though the planting must be made if cashew apples are to be utilized, as they are highly perishable and the fruit must be dried in wet

weather for 1

– 3 days

. Rain at h arvest may increase rot and stimulate nut germination.

Chestnut :

Chestnuts are harvested by collecting from the ground after falling naturally. The nuts are removed from burs and dipped into hot water (68 °C) for one hr to

eliminate surface molds.

Coco nut:

Coconuts are collected every 4

– 6 weeks throughout the year by cutting the bunches by a pole. Monkeys have been trained to harvest the coconuts too. Mature nuts must be dehusked before shipment to the fresh market.

Hazelnut:

Hazelnuts are har vested by hand in most of Europe, but mechanized in the .U.S. The nuts drop naturally during a 6 week period beginning in September. Winds or helicopters can remove the last remaining nuts. The orchard floor is mowed closely, and kept

free of debris to facilitate windrowing and sweeping of nuts.

Macadamia nut:

Macadamia nuts are harvested largely by picking up by hand, although mechanical harvesters are being evaluated. Harvesting may extend over a 6

- 12 week period. Most of the crop is used for confectionery, but whole kernels are roasted and salted and sold in jars/cans, usually in "gourmet" sections of markets. Macadamias are considered to be among the finest table nuts in the world, but they contain high quantities of oil, and can

be fatteni ng.90

Pecan:

The size of a pecan orchard will determine how an individual grower will harvest his or her pecans. Commercial growers with large orchards have special machines that shake, pick up, and process the pecans to prepare them for customers. Sm aller orchards usually just pick the pecans up by hand. The pecans are separated from shucks, leaves and other debris, and then dried in forced

- air heaters to a moisture content of 10

- 15%. Nuts can be stored for about 4 months at room temperature befor e becoming rancid, but

last 1

- 2 yr when stored at 34 F. Pecans are harvested when the shuck opens, allowing the nuts to drop. Mechanical aids can be used to help speed nut fall. These devices range from a long pole used to shake small limbs to large co mmercial branch or trunk shakers that cause nuts to fall in a very short time. For small

- scale operations, sheets can be spread under the tree to catch the falling nuts. Nuts also can be picked up with small, push

- propelled harvesters ranging from 12 to 48 inches wide for small

- scale plantings or large, commercial mechanical nut harvesters. Nuts harvested by hand should be picked up every other day to prevent the nuts from molding or being destroyed or removed by

pests.

Pistachio:

The nut skin change s from translucent to opaque, and the mesocarp becomes loosened from the shell when nuts are mature, and highest quality is obtained when

harvest occurs within 7

- 10 days of this stage. Young trees (<10 yr) are too fragile to be harvested by trunk shaker s, so are harvested by hand knocking onto canvas sheets, but mature trees are harvested by conventional shake

- harvest equipment used for almonds. During harvest, the shells often become stained and blemished. Unless camouflaged, the pistachios appear una ppetizing. United States importers sometimes employ a red vegetable dye to give the nuts visual appeal. The red color serves another purpose as well, since it appeals to consumers who are used to it and demand it. In California, however, pistachios are mechanically hulled and dried and most are not colored and left in the unblemished, natural state

Black walnut:

The best known use of black walnut is for its lumber and veneer. The wood is used for fine furniture of all kinds, interior paneling, speci alty products, and gunstocks. The nuts of black walnut serve many purposes. The kernels provide food for wildlife and humans. Ground shells provide special products. During World War II, airplane pistons

were cleaned with a "nut shell" blaster and this idea was carried into the auto industry; manufacturers used shells to deburr precision gears. Ground shell products are also used to clean jet engines, as additives to drilling mud for oil drilling operations, as filler in dynamite, as a nonslip agent in automobile tires, as an air

- pressured propellant to strip paints, as a filter agent for scrubbers in smokestacks, and as a flour

- like carrying agent in various insecticides. Black walnut, also called eastern black walnut and American91

walnut, is one of th e scarcest and most coveted native hardwoods. Small natural groves frequently found in mixed forests on moist alluvial soils have been heavily logged. The fine straight

- grained wood made prize pieces of solid furniture and gunstocks. As the supply dimin ishes, the remaining quality black walnut is used primarily for veneer. The distinctive tasting nuts are in demand for baked goods and ice cream, but people must be quick to harvest them before the squirrels. The shells are ground for use in many product s.

English walnut :

English walnuts are harvested at the beginning of shuck split, when the seed coat is a light tan color which is the market preference. The walnuts are harvested by using trunk or limb shakers depending on tree size. A windrow mach ine places the nuts into narrow rows to be picked up by a sweeper. Nuts are collected in large bins and taken to the processing plant. The process is similar to those used in pecan.

Processing of the Tree Nuts (Adapted from Society of Ontario Nut Grow ers, 2009, Kadar, University California Publ. 3311, 1992, Fulbright, A Guide to Tree Nut Culture in North America, Volume I, 2007 )

The tree nuts need to have their hulls removed and dried as soon as possible after

harvest. The nuts should be dried to < 10 % moisture to avoid insect and disease loss. All of the tree nuts except chestnuts have a hard shell that will break or shatter under pressure to release the nut. Nut processors use rollers to crack the nut. The nuts are fist sized through screens s o that all the nuts of one size can be cracked at once. This method

works best for hazelnuts and walnuts. Heartnuts must be fed into a slightly curved rollers. Aspirators and blowers are used to collect and separate the nut meats from the

shell. final sort is carried out to make sure shell fragments and spoiled nut meats are

discarded. Dried nuts are stored in bins, silos, or other bulk storage. Nut meat may be pressed for oil extraction, while shelled are often used for boiler fuel.

Shelling, proc essing and packaging of tree nuts are always in a changing state as technology makes processing more efficient. The approximate percentage of shell material that must be discarded varies from only 19% for chestnut to 78 % for black walnuts ( Fulbright, 200 3). Pistachio has 47 % shells, pecans are 48 %, almond is 49 %, while hazelnut is 53 % and English walnut is 55 %. The shelling process is broken down into three general operations: (1) cracking the shells, (2) separation of the kernel or kernel pieces from the shell, and (3) subsequent grading of the shelled products. Most hard shelled nuts must be preconditioned before cracking to increase moisture so the shells will crack earlier. Preconditioning involves soaking nuts in water, surface wetting

and k eeping the nut in high humidity, or by steam conditioning. After cracking the shell is separated from the edible kernel or meat, then the nuts will be graded by marketing standards into sizes and color and packaged. Marketing standards are discussed in t he USDA Marketing Standards for Tree Nuts section of this analysis. Processing nuts for92

sale by cooking are discussed in the “ Preparation and Cooking Methods for the Tree Nuts” section of this analysis. Additional processing consideration for some of the tree
nuts are discussed below.

Almond:

Almond fruits may be may be dried and hulled immediately, or stockpiled for fumigation against Navel orangeworm after harvest. The hulls are placed in p iles to be hauled away for use as livestock feed for dairy cattle. Nuts are dried by forced hot air

until their moisture content reaches 5

- 7%. Nuts are then dehulled and shelled. In

- shell nuts can be stored in bins for weeks or months until final processing. Nuts are then shelled and sorted for size and app earance. Last, the nuts are bleached for color improvement, then salted, roasted, and/or flavored before packaging.

Cashew:

The presence of caustic cashew nut shell liquid (CNSL) in the shells makes cashew processing more difficult and hazardous than for other nut crops. After harvest, the nuts are dried in the sun or in simple tray driers and stored for processing later. The dried nuts can be stored for about two years at room temperature after reaching water contents of 5

– 10 %. Nuts are rehydrat ed partially by soaking or storing in high humidity since this facilitates extraction of whole kernels and CNSL. Nuts are separated by size before roasting to ensure uniformity of the roasting process, and after roasting, nuts are shelled either by hand o r in machines.

Coconut:

Coconuts intended for copra or oil production are split open with a machete, discarding the milk, and exposing the endosperm to the sun to dry. Drying takes 2

- 5 days in the sun, or can be done more quickly in kilns. Once dr y, the copra is removed from the seeds with metal tools, and further dried to reach a water content of 5

- 6%. Coconut oil for is extracted mechanically by pressing, or chemically by the use of solvents. Coconut oil is used for cooking, to make candles, soaps, cosmetics, and in explosives. Whole coconuts can be stored for several weeks prior to dehusking and extracting copra. Fruit are kept dry, but stored at ambient temperatures.

Hazelnut:

Hazelnuts are swept into windrows and harvested mechanically. Debris is blown from the nuts, which are washed in mild chlorine to reduce surface contamination, and bleached by exposure to SO2 to enhance appearance. Hazelnuts are dried to 8

- 10% moisture, permitting storage for up to one year at 36

- 40 ° F.

Chest nut:93

The fresh chestnuts are 50 % moisture and can be stored for 8 weeks at 40°F, or dried to 10% moisture so they can be stored for a year. Dried nuts are re

- hydrated by soaking or steaming prior to use; they become hard and inedible if stored long.

D ika Nut:

The fruits are harvested and split in half to remove the kernels. They are hest

treated and then stored for use.

Macadamia nut:

The macadamia nuts are dehulled mechanically and then dried to low water contents at <

2 %. Nuts are cracked and sorted to remove off

- color kernels and pieces of shell. Kernels are graded into two classes’ flotation; grade I kernels (> 72 % oil) float and grade II (< 72 % oil) sink.

Mongongo nut :

The mongongo is a highly nutritious nut and the fruit skin, wh ich is not consumed: it is removed and discarded. The outer shell of the nut is very hard and difficult to crack. The nut kernel, which looks like a small hazelnut (except that it is skinless), and breaks easily into halves. The taste is similar to that of cashews or almonds that have been dry

- roasted. With long roasting, the nut develops a flavor similar to an aged cheese. The flesh of the mongongo fruit was eaten whole and raw in the past, but now it is cooked in an iron cooking pot for 20 minutes. The nuts are roasted about 5 minutes in a mixture of coals and a small pile of dry, loose sand; then they are cracked. They can be eaten whole, or pounded in a mortar, or mixed with a variety of vegetable or

animal foods.

Pecan:

Pecans can be harvested when the shuck loosens from the shell, or when shucks split. Pecans are harvested with trunk or limb shakers, depending on tree age. Trunks or individual limbs are shaken, depending on tree size. A windrow machine consolidates nuts scattered on the grou nd into rows over which a sweeper is run to collect nuts.

Leaves and other debris are separated from the nuts by blowers attached to the windrower

and harvester. Once harvested, the nuts must to be dried to 8 to 10 % moisture, or to 3.5 to 4.5 % for opti mal long

- term storage. For small

- scale production, the nuts can be dried by placing them in porous burlap bags in a location with moderate ventilation and heat. Commercial dryers use forced air heated to approximately 100°F for optimal drying. Pecans, lik e any nut, have relatively high oil content and will spoil. For optimal storage, they can be held at 32°F for approximately one year. For longer storage periods, the nuts should be kept in a freezer. If pecans are sold in the shell, the price is determi ned by the94

variety, nut size, shell damage, and whether any of the shuck is still adhering to the shell. If the pecans are sold shelled, the price is usually determined by the percentage shell out, kernel color, development, insect damage, percentage of m old, and size.

Peach plum nut :

Due to the spines, the fruit are usually harvested with long poles equipped with cutters. If possible, a soft landing for the falling fruit should be put in place prior to cutting. The peach palm nut should be boiled wit hin 2 to 4 days of harvest. Before consumption, the fruit is boiled in water with added salt for about 1 to 3 hours to eliminate oxalate crystals and a trypsin inhibitor. Then, the outer peel is removed and the pulp eaten. The flavor

varies with the car otenoid content and may be bland to a nutty or strong flavor. The nut pulp may be dipped in mayonnaise or cheese

- dip and may also be mixed with cornmeal, eggs, and milk and fried. There is also a niche market demand for dry flour.

Pine nut:

During ha rvest, the cones of the tree are shaken to remove the kernel. Once removed, in commercial operations, they are dried further before being processed in a milling station to remove the kernel from its hard outer shell. The kernels and shells are separated by sifting; the testa, or thin skin which still covers the kernel, is then removed. Thereafter, the kernels are graded and sized. Superior, unblemished, shelled kernels, both large and small, are reserved for the export market; the remaining kernels are sold locally or utilized in prepared foods.

Pistachio:

Harvested fruit must be hulled and dried within 24 hr to avoid shell staining and aflatoxin contamination. Fruit are fed through machines that have 2 parallel, rubberized belts rotating at differen t speeds. Hulled nuts are floated and washed, and hulls are often composted and used for fertilizer. Nuts are dried in large forced

- air driers to a moisture content of 5 %, and stored in large bins until roasting. Pistachios can be stored for

months in a dried state.

English walnut:

The f reshly harvested English walnuts are removed from hulls and dried in forced

- air dryers at 100

- 110°F until 8 % moisture content is achieved. In

- shell nuts are bleached and sold fresh, or shelled and marketed as ker nels. The dried nuts can be stored for about 4 months at room temperature before becoming rancid, but last 1

- 2 year when stored in

the freezer.95

Comparison of the Raw Agricultural Commodities (RAC) and Processed Commodities for the Tree Nuts (See Tabl e 28).

The raw agricultural commodities (RAC) for the Tree nut group are similar except for chestnuts (Table 28). There are no processed items for humans but almond hulls are utilized in dairy and beef cattle diets.

Table 28. Tree Nut Portion Analyz ed for the Raw Agricultural Commodity (RAC) and the Processed Commodity (40 CFR Vol. 58, No. 187, 9/29/1993, pp. 50888

– 50893. Portion of Food Commodities Analyzed Pesticide Residues: Proposed Rule), and Table 1 Raw Agricultural and Processed Commodities Derived from Crops (EPA Residue Chemistry Guidelines OPPTS 860.1000).

Commodity Portion Analyzed (RAC), Use as a

Feedstuff (F) Processed Commodity

and Use as a Feedstuff (F) Tree Nut group Analyze the whole commodity

(kernel) after removing shell, husk,

or hull.
Almond, hulls Analyze the whole commodity after

removing the shell and nutmeat. Almond, hulls (F)

Chestnut Analyze the whole commodity with

the skin after removing the shell and

nutmeat.

Coconut Analyze the coconut (meat and

liquid combine d) Copra (dried meat)

Oil

Other uses for the specific tree nut commodities are discussed under the section of this report for the p reparation, cooking methods, uses, and marketing standards for members of the Tree nut group 14.

LIVESTOCK FEED ITEMS :

There only significant animal feed item associated with the Tree nut crop group 14 (Table 28) is almond, hulls. Almond hulls are fed to beef and dairy cattle.

CROP ROTATIONS FOR THE TREE NUTS:

The members of the tree nut group are not rotated bec ause of their long productive life spans at the same location most tree nut orchards or plantations. They also are

e xtremely long

- lived and productive once established. For example, pecans take 8 to 10 years to produce their first crop; chestnuts mature in 40 to 80 years; English walnut may live > 100 years; hazelnuts take four years to mature and live < 40 years. Pecans are also96

long lived up to 200 years. Pine nuts are slow growing and take 10

- 20 years to have filled cones and live for 50 to 70 years or more. Coconut palms can live 80

- 100 years.

The useful life of macadamia nut trees varies from 40

– 60 years.

PEST PROBLEMS FOR THE TREE NUT CROPS : (Developed from USDA Crop

Profiles from CA, NC, OR, TX, and WA Extension Bulletins and Research Li terature, Hawaii, USDA Crop Profiles, State Extension Publications ).

There are several common pest problems that occur among the tree nuts. The most important pest problems associated with this group of commodities are insects and mites, plant diseas es including postharvest diseases. The following information from USDA and Extension Bulletins provide lists of important insects, mite, diseases, viruses, weeds and vertebrate pest problems of the tree nuts (USDA Crop profiles 2008).

There are some com mon pest problems among tree nuts. The most important pest problems associated with this group of commodities are insects, mites, diseases, nematodes, weeds and vertebrate pests. The following are a list of important pest problems of some of the predomin ant North American tree nuts:

Almond : (California, USDA Crop Profiles, State Extension Publications):

Insect and mite pest problems include the Navel orangeworm (NOW), peach twig borer, pavement ant, southern fire ant, and the San Jose scale. The nave l orangeworm attacks most softshell cultivars, or nuts with poor seal, feeding inside the nuts on the kernels. It destroys kernels and is associated with fungi responsible for aflatoxins. Peach twig borer (PTB) larvae mature inside nuts producing large a mounts of frass (excretement ) and webbing, and cause large economic damage. PTB damages almonds by feeding in rapidly growing shoots making it difficult to train young trees. Ants are significant pests of almond, particularly in central and southern area s of the San Joaquin Valley. San Jose scale s suck plant juices from the inner bark by inserting their mouthparts into twigs and branches and heavily infested branches and fruit spurs will die. Borers such as peach tree borer American plum borer attack th e trunk of healthy trees and

can weaken trees. The ob lique

- banded leafroller larvae feed on leaves, buds and fruit, and the summer generation as almost mature larvae consume nut hulls prior to hull split causing nuts to shrivel and mold and allow the nave l orangeworm to enter at points where

hulls have been chewed. The two

- spotted mite, Pacific mite, European red mite, brown almond mite can cause almost complete defoliation that exposes trees and fruit to sunburn, reduces fruit size and sugar, and can int erfere with harvest.

Diseases of almonds include brown rot, green fruit rot or jacket rot, anthracnose, scab, leaf blight, Alternaria leaf spot, leaf rust, Pseudomonas bacterial canker and blast, Armillaria root rot, crown gall, Phytophthora spp root a nd crown rot, Ceratocystis canker, and Verticillium wilt. The brown rot is worse when rains or fog occur during97

bloom and the infected flowers wither and remain attached to the fruit spurs, and the fungus grows from the blossom into fruiting spurs or twig s to form cankers. Almost complete crop loss can be experienced on susceptible cultivars when rain persists during bloom. The green fruit and jacket rot are produced on dead or dying tissues of a number of plants as well as weed species common in almond orchards. Ar millaria root rot invades the roots, crown, and basal trunk, eventually girdling the crown region and destroying the entire root system causing death of the tree. Phytophthora root rot organisms enter the tree either at the crown near the soi l line, at the major roots or at the feeder roots. Infected trees may decline for several years or die within the same growing season in which the foliage symptoms first appear. Anthracnose disease spores are produced on all infected tissues during wet c onditions and are disseminated by splashing water. Blossoms, leaves, and fruit can be infected and can cause death of the fruit. Leaf blight results in sudden death of leaves in almonds. Leaf rusts can cause severe defoliation in a short period of time if conditions are favorable. Bacterial canker and

blast is expressed in almonds as either a canker or on buds and leaves. The C eratocystis

canker is transmitted by insects attracted to wounds and large cankers weaken diseased limbs and trunks and may lea d to collapse of scaffolds or trees. Verticillium wilt i s a soil

- inhabiting fungus capable of parasitizing plants and attacks young almond trees less than 5 years old.

Nematode pests include the l esion nematode, ring nematode, and root knot

nematode t hat feed on plant roots and cause a lack of vigor, small leaves, dieback of twigs and a sparse root system, particularly the lack of small feeder roots. Root galls are

an indication of root knot nematode. Ring nematodes spend their lives in soil feeding on root and they can reduce the fruit size and quantity with only slight apparent stunting in overall tree growth.

The orchard floor weeds not only cause harvesting problems but can cause a multitude of other problems in almond orchards by reducing the growth of young trees because they compete for water, nutrients, and space, and may increase vertebrate and invertebrate and other pest problems, or may enhance the potential for disease such as crown rot or provide disease vector living material to infect the trees. There are over 15

– 30 species of grassy and broadleaf weeds that may infest orchard soils. Winter annual weeds may aggravate insect pest and disease problems and by spring will flower and set seed. By May, summer annuals begin to germinate, and must be managed so that they do

not interfere with harvest.

Vertebrate pests include ground squirrels and pocket gophers. California ground squirrels are responsible for significant damage in almond orchards throughout the state. California groun d squirrels live in underground burrows and they are primarily herbivorous and can infest almond orchards. They easily climb trees and feed on nuts from set to maturity and through harvest. Adult squirrels often store seeds and nuts in their burrows, esp ecially in the late summer and early fall. Ground squirrels cause damage by feeding on buds, blossoms, and nuts, gnawing on bark and irrigation lines, girdling the tree, and by creating burrows that interfere with orchard operations, such as irrigation, m owing, and harvest. Pocket gophers frequently live in orchards and feed primarily on succulent underground parts of herbaceous plants and create extensive98

burrows for living and feeding. They are active throughout the year and cause tree damage or death by girdling roots or crowns at or below the soil level. Birds such as crows, scrub jays, or yellow

- billed magpies, can cause considerable damage to almonds by consuming nuts or removing the nuts for storage.

Chinquapin:

The chinquapins are susceptib le to several pests’ problems and include insects,
mites, and diseases that attack other native and introduced chestnuts. Several insects including two chestnut weevils, a nut curculio, Asiatic oak weevil, Japanese beetle, yellownecked caterpillar, and th e pinkstriped oakworm that feed on the flowers, fruit and foliage of chinquapin. Chinquapins are also susceptible to Phytophthora root rot.

Native Allegheny chinquapins are prolific producers of sweet nuts but are small, difficult to harvest, and can g erminate at harvest time, they have had so far limited potential as a large commercial crop, because of its small tree size, but production may be increased due to its useful characteristics to breed into the commercial chestnut species. These chinquapin characteristics can facilitate the development of high

- density chestnut production systems with earlier and higher yields than is possible with existing chestnut cultivars. Nuts are eaten by a number of small mammals such as squirrels, rabbits, deer mice, and chipmunks.

Coconut:

Coconuts need good weed control during establishment. Insects include palm weevil, scale insects, beetles, mites, and grasshoppers. Plant disease includes bud and stem rots, leaf blights, and various viruses such as foliar de cay.

Hazelnut: (Oregon, USDA Crop Profiles, State Extension Publications):

Hazelnut pests include insects such as moths , leafrollers, filbert bud mite, looper, mealybugs, aphids, weevils, scales, and caterpillars. Plant diseases are varied including Eastern filbert blight (EFB), powdery mildews, stunt and blasts. The Eastern filbert blight can be extremely severe to the industry. Weeds are typically grassy and broadleaf weeds that will interfere with harvesting.

Macadamia nut : (Hawaii, USDA Crop Profiles, State Extension Publications):

There are several insect pests of macadamia nuts and include the southern green stinkbug and the tropical nut borer beetle which degrades nut quality by boring holes through the shell and laying eggs within the ker nel. The southern green stinkbug is a sucking insect that feeds on succulent plant tissue, fruits and flowers. The stinkbug99

inserts its hollow needle

- like mouthpart into the nut and injects saliva into the kernel.

The koa seedworm moth and litchi fruit moth cause similar damage by boring into the husk and feed on the kernel and cause premature nut drop. Red

- banded thrips may damage leaves and cause reduction of tree growth and vigor. For mites, the broad mite damage is most severe in wetter growing are as, and uses it’s piercing and sucking mouthparts to damage fruits, flowers and young leaves, and infested flowers will not set

fruit.

Plant diseases include the Macadamia quick decline (MQD), Macadamia root rot, raceme and blossom blights ( Phytophthor a capsici and Botrytis cinerea ). Macadamia quick decline (MQD) may kill a tree two to three months after the appearance of initial foliage symptoms. Macadamia root rot fungus affects the roots and lower trunk of trees and trees that decline are usually 1 0

- 12 years old.

Weed management is an important component in macadamia nut production because weeds compete for food, water, nutrients and sunlight. They also provide shelter for insect pests and their predators and can enhance or reduce insect dama ge. Weeds also can make rodent management more difficult and interfere with harvesting. Younger

orchards are more vulnerable to weed competition than older orchards. R oof rats are also a major pest and they gnaw holes 1⁄4

- 1/2 inch in diameter through th e shell and consume

the kernel.

Peach palm nut:

The trunk of pe ach palm nut is susceptible to attack by Phytophthora algae. Leaves may be attacked by Pestalotiopsis sp p
., Mycosphaerella sp. and Colletotrichum

sp p

. Fruit diseases are caused by Monili a sp. and Ceratocystis species. Insect pests include the sugar cane weevil ( Metamasius hemipterus ) and mites

Pecan : (Arkansas, Georgia, Kansas, Louisiana, North Carolina, Texas USDA Crop Profiles, State Extension Publications):

Pecans are subject to attack by more than 20 insects and mites. Insect pests of pecans include the p ecan weevil; hickory shuckworm, black pecan aphid, black

- margined aphid, and yellow hickory aphid, southern green stinkbug, pecan nut casebearer, pecan phylloxera, pecan leaf ph ylloxera, pecan leaf casebearer, pecan spittlebug, and alder spittlebug. The pecan nut casebearer larvae can destroy all the nuts in a cluster. A single larva may destroy two to three nuts before completing its life cycle. The hickory

shuckworm feed int ernally in the immature nuts and cause them to drop. The pecan phylloxera attack pecans, leaf phylloxera, stem phylloxera and pecan phylloxera. They are contained in galls, abnormal swellings, on the leaves or stems and the stem

infestations can weaken t he shoots that will cause shoot death and premature defoliation. The spittlebug nymph sucks juices from the buds, young shoots, and nut clusters of the

pecan tree and heavy feeding by these insects may kill terminal shoots and/or reduce nut size, resultin g in a smaller crop . The pecan weevil attack pecans and hickory prior to100

shell hardening causing the nuts to drop. The nut curculio attack the immature nut with their snouts and cause sap bleeding and later premature nut drop. The yellow pecan aphid and black

- margined aphid are similar in appearance and cause similar types of damage by feeding on the under surface of the leaves and secret honeydew which promotes black sooty mold growth. Both the honeydew and mold coating the leaf

surface will interfere with photosynthesis efficiency. Both southern green stink bugs and

leaf

- footed bugs puncture nuts both before and after shell hardening. If they feed before shell hardening, the nuts fall prematurely and if the feeding occurs after shell hardening,

then black spots develop on the nut kernel. Kernel feeding stink and plant bugs may be present in the orchard all year, but they typically do not cause significant damage until late August

– September by feeding that causes nuts to drop prior to shell hardenin g. Fire ants attack orchard workers when grafting buds, mowing weeds, harvesting, and other operations. Ants also come to drip irrigation lines for moisture and cause damage to equipment and emitters. Walnut caterpillar larvae feed in groups on leaf tis sues causing defoliation and severely affecting tree vigor, yield, and nut quality. Fall webworm feeds

on pecan nuts and can completely defoliate trees. Dirty white webs enclosing a colony of caterpillars are the distinctive signs of fall webworm infesta tions. The pecan twig girdler girdles twigs and small branches in September. The pecan leaf scorch mite feed primarily along the midribs and veins on the underside of the leaves and can cause almost complete defoliation.

Plant diseases affecting pecans include p ecan scab, downy spot, powdery mildew and zonate leaf spot. Pecan scab is a very destructive and widespread disease of pecans

and can cause terminal to die and attacks both the leaves and the shuck and causes leaves

to be smaller and deformed as well as affecting shucks which will fall prematurely, and later infections may cause the shucks not to release properly from the nut. Shuck decline

also causes terminal death. that can be affected while others remain healthy. Vein spot lesions are very s imilar to those caused by pecan scab but tend to be linear rather than round. Downy spot attacks only pecan leaves, and infection reduces photosynthesis and may cause defoliation as well as reducing tree vigor and yield. The zonate leaf spot

causes sever e defoliation of pecan trees during July and August of rainy summers. Fungal leaf scorch is a major cause of premature defoliation of pecans in the southeast. Bunch disease of pecans is a disease that affects weak pecan trees and is caused by a mycoplasm a

- like organism that lowers yields and causes inferior nut quality while powdery mildew causes immature leaves to become distorted, and to form a white layer that reduces photosynthesis and/or causes early defoliation and nuts may also turn color.

Ther e are several nematodes that attack pecan roots. W eeds cause similar problems for all tree nuts because they reduce yield, quality and harbor pests

. Weeds interfere with pecan production by competing for moisture and nutrients, producing chemicals that

i nhibit tree growth (allelopathy), and decreasing mechanical harvesting efficiency. The most commonly used system of orchard weed control is an herbicide strip in the tree row with mowed sod row middles. Vegetation management is particularly important for mechanical harvesting. Weeds that are particularly troublesome in pecan production are

p oison ivy, t rumpet creeper, riverbank grape, and Virginia creeper as well as perennial weeds such as bermudagrass.101

Other pests that may also be encountered in a p ecan orchard include sapsuckers, squirrels, blue jays, crows, and deer. Sapsuckers are birds, similar to woodpeckers that peck holes in a ring pattern and frequently in concentric circles on the trunk and large branches of trees. Squirrels, crows, and bl ue jays will also enter the orchard to steal nuts. Deer can cause serious tree damage both by feeding on the new growth and by rubbing their antlers on younger trees during the fall.

Pistachio (California, USDA Crop Profiles, State Extension Publicati ons):

Many insects attack pistachios and include the n avel orangeworm, small and large plant. The n avel orangeworm deposit eggs on the outer hull of the developing pistachios, and upon hatching from eggs, the larvae will infest the nutmeat and produce e xcretement (frass) and webbing in the nut. Infested nuts are prime sites for Aspergillus mold infections, which produce aflatoxin contaminants. The o bliquebanded leafroller attacks a wide range of nuts including almond, pistachio, and walnut. The over w intering larvae will feed on newly formed leaves and clusters and the primary damage is through

defoliation. W estern tussock moth in high populations can quickly defoliate orchards prior to fully leafing. Small plant bugs can reduce yields dramatically w hen high populations are present by damaging the nut before shell hardening. Large plant bugs

like the r ed shouldered plant bug and green soldier bug can damage the crop throughout the growing season and by feeding early in nut development will result in nut abortion. Stored nut insects are also problems and include the Indian meal moth, navel orangeworm, red flour beetle, confused flour beetle, warehouse beetle, and the cigarette

beetle. Mites include the c itrus flat mite, Pacific mite, and the twospott ed mite. The

citrus f lat mite feed in nut clusters and heavy pest pressure causes stems and nuts to shrivel and the damaged nuts have an increased tendency to remain on the tree after harvest and serve as an over wintering habitat for navel orangeworm. T he two spotted mite when present can be very damaging, since as few as 2 to 3 mites per leaf can cause defoliation in pistachios, and when this occurs trees will not leaf out again until the following season.

Plant disease of the pistachio include Botry osphaeria panicle and shoot blight, Botrytis shoot blight, Alternaria late blight, Phytophthora trunk and branch canker, and

Verticillium wilt. Botryosphaeria panicle and shoot blight fungus will attack all current season growth and kills buds, shoots and fruit clusters. The disease grows throughout the

season and can kill the nut

- bearing clusters just before harvest. Botrytis shoot blight infections occur in early to mid

- spring and are associated with cool, wet weather. The fungus invades the base of t he young shoot, killing it. Alternaria late blight pathogen attacks leaves and fruit but the primary damage is to leaves, which shed early causing

defoliation and orchards. Phytophthora trunk and branch canker may infect the

rootstocks. Verticillium wil t is a widespread soil

- borne fungus that survives in the soil for many years with or without the presence of susceptible hosts. It invades the small roots, colonizes the xylem elements, thereby disrupting the flow of water through the plant, and can lead to tree death with up to 100% tree loss can occur in plantings on susceptible rootstocks.102

O rchard floor weeds compete with trees for water and nutrients. They can increase vertebrate and insect problems and aid in the development of the diseases

Altern aria and Botryosphaeria by increasing the humidity in the orchard. The orchard floor is usually cleaned shortly before harvest. Certain weeds such as yellow nutsedge,

flax

- leaf fleabane, mare ’ s tail will require multiple applications of herbicides.

Va rious vertebrate pests such as ground s quirrels and pocket gophers infest pistachio orchards. They easily climb tress and feed on nuts from fruit set through harvest while adult squirrels often store seeds and nuts in their burrows, leading to significant harvest losses. In addition, the extensive burrow and mound system creates problems for orchard operations especially during harvest and irrigation. P ocket gophers live almost entirely underground, creating extensive burrows for living and feeding on

th e roots or they can cause tree damage or death by girdling roots or crowns at or below the soil level and they also chew through underground irrigation systems and they are active throughout the year.

Walnut, bl ack (USDA State Extension Publications,

ht tp://walnutsweb.com/walnuts/Walnut+Tree+Diseases+and+Pests):

Black walnut is damaged by a number of insects. In southern Illinois over 300 insect species are found on black walnut. Common defoliating insects are the walnut caterpillar and the fall webwo rm, and they are commonly found eating the leaves beginning in midsummer and continuing until September. Important boring insects are the ambrosia beetle, which may introduce a Fusarium fungus into the tree, causing dieback and resprouting from the base o f the tree; the flatheaded apple tree borer, which feeds in the phloem and outer sapwood area as larvae and on the foliage as adults; the walnut curculio, which damages developing nuts when the larvae bore into them and cause great losses during the so

- cal led "June drop" of black walnuts; and the walnut shoot moth, which damages the terminal buds in early spring when the larvae bore into the still unexpanded bud. Aphids suck the juices from leaves and deposit a sticky substance called "honey

- dew" on the le af surface that may turn black and prevent photosynthesis; and the walnut lace bug, which causes damage when the adults and nymphs suck the sap

from the lower surfaces of walnut leaflets.

Black walnut is susceptible to only a few serious plant diseases, bu t their impact is significant. Walnut anthracnose is a leaf spot disease that begins during wet spring weather, although symptoms may not become visible until June or July. Target leafspot is responsible for premature defoliation. Important stem disease s caused by fungi are the

Fusarium cankers and occur on the main stem where a branch will break off and leave an open wound.

Animals damage black walnut in several ways such as deer browse on buds and rub antlers against young trees. Mice and rabbits gnaw on the stems of young trees103

during the winter, and squirrels dig up and eat direct

- seeded nuts and feed on green and mature nuts still on the trees. The yellow

- bellied sapsucker drills holes through the bark during late winter or early spring.

Walnut, English (California, USDA Crop Profiles, State Extension Publications):

The walnut has many insect pests such as the codling moth, navel orangeworm, walnut husk fly, walnut aphid, dusky

- veined aphid, San Jose scale, walnut scale, frosted scale, European f

ruit Lecanium, fall webworm, and the redhumped caterpillar. The

c odling moth must be controlled in many early

- blooming varieties because it causes moth larvae damage nuts by boring into nuts and destroying the kernels, rendering them

worthless for commerc ial use. The navel orangeworm attacks a wide range of walnut varieties; feeding directly on the kernel inside the nut. The walnut husk fly is a direct pest of walnuts and attacks all varieties by feeding in the husk causes darkening of the shell, and sh rivel and mold on the kernels. Aphids frequently build up to numbers adequate to cause stress on new leaf and walnut growth and heavy infestations can cause almost complete defoliation and sooty mold that causes severe sunburn on the nuts and reduce yield s. Scale insects occasionally build up to numbers capable of reducing shoot and nut growth and large populations may result in the loss of fruiting wood and the production of small

- sized walnuts. Soft scales suck plant juices from leaves and twigs

and ca n reduce terminal growth and vigor interfering with photosynthesis resulting in smaller nuts and poor kernel quality. Larvae of the fall webworm feed inside silken tents skeletonizing leaves reducing photosynthesis and exposing nuts to sunburn. The

redhu mped caterpillar larvae feed on leaves and heavy populations can cause severe defoliation resulting in sunburned nuts and small nut size. There are also significant mite pests of walnuts such as the t wospotted mite, Pacific mite, and the European red mite that can cause almost complete defoliation which exposes trees and nuts to sunburn, reduces nut size, and can interfere with harvest.

Plant diseases of walnut include the Armillaria root rot, crown gall, Phytophthora root and crown rot, and walnut bligh t. The Armillaria root rot pathogen invades the roots, crown and basal trunk, eventually girdling the crown region and destroying the entire root system causing death of the tree. Although crown gall can affect established orchards, the disease is most d amaging to young trees and if left unchecked, crown gall may progress around the crown weakening and eventually girdling the tree. About ten

different Phytophthora species attack walnut trees, and enters the tree either at the crown

near the soil line or at the major roots. The infected tree may decline for several years or die within the same growing season in which the foliage symptoms first appear. Walnut blight is a bacterium and major disease affecting leaves and nutlets of walnuts. Later,

infected nutlets develop a dark lesion usually at the blossom end; most of these also drop and as nuts mature, lesions can develop anywhere on the husk surface causing kernels to

shrivel or darken which renders them unmarketable.

Nematode pests of walnuts includ e the l esion nematode, ring nematode, and root

knot nematode that feed on the roots. The extent of the damage caused by nematodes in104

walnuts depends largely on the density of the nematode population, soil conditions, and rootstock selection. Symptoms of a nematode infestation include lack of vigor, small leaves, dieback of twigs, and a sparse root system, particularly the lack of small feeder

roots.

Vertebrate pest of walnuts include g round squirrels that can cause major damage to the walnut orchard, and they are active in the spring, early summer and in the fall, with inactive periods during the summer and winter. They cause damage by feeding on buds, blossoms, and nuts, gnawing on bark and irrigation lines, girdling the tree, and by creating burrows that interfere with orchard operations,

Weed problems occur at harvest as well as causing a multitude of other problems in walnut orchards by reducing the growth of young trees because they compete for water, nutrients, and space. Weeds also increase w ater use, cause vertebrate and invertebrate and other pest problems, may enhance the potential for disease, and compete with the trees for nutrients and water. Weeds can also interfere with sprinkler irrigation and, when dry, create fire hazards. Young t rees are especially sensitive than mature trees to weed competition and control measures.

As noted above the current and proposed members of the Tree Nut Crop Group share many of the same pest problems that include insect, disease, weeds and vertebrate pest problems.

COMPARISON OF POTENTIAL RESIDUE LEVELS IN THE TREE NUTS:

Magness, Markle, and Compton in 1971 classified food and feed crops based on predicting the potential for pesticide residues based on exposure of the edible parts to applied pest icides, which led to the development of the crop groups. The tree nuts fit into one class because they are all similar in the degree of exposure of applied pesticides. The edible seed is protected from pesticides applied during the growing season by the shell and other parts of the fruit. The seeds are encased in a fleshy or fibrous husk, or are essentially covered by such tissues during growth. The edible portions are additionally enclosed in woody or semi

- woody shells which must be removed before cons umption

We expect that all proposed members of the tree nut crop group will have similar residue levels based on similarities of the raw agricultural commodities (RAC’s), cultural practices, and pest problems. The current Tree nut group 14 has been ver y successful in establishing 55 tolerances for the crop group (Table 29). Based on existing tolerances in 40 CFR and the USDA FAS MRLdatabase, a comparison of these tolerances for the representative commodities is listed in Table 30 for the U.S., Codex MR L’s, and the European Union (EU). In several cases the U.S. tolerances are the higher or the same as those established in the EU and/or in Codex, in fact of the twenty

- four tolerances that the U.S and the EU have the U.S. was higher ten times; the same le vel four times and lower four times. Comparison of the seven tolerances between the U.S. and Codex shows five tolerances are the same and two are higher than Codex. A comparison of established105

tolerances on tree nut commodities also supports that residue levels will be similar between members of the crop group (See Tables 31). The proposed representative commodities are the two highest tree nuts in acres and cover over 74 % of the total tree nut production in the U.S., and they also tend to be an equal o r more conservative estimate of tolerances and potential residues. In general where there is a difference between the representative commodities almond tolerance levels are slightly higher than pecan (clofentezine, endosulfan, simazine). There are eighty

- one tolerances for almond hulls and they are the only animal feed item for the Tree nut group (Table 32).

Table 29. Tolerances (ppm) Established on U.S. Tree Nut Crop Group 14. (FASONLINE; NG, 2009)

Chemical U.S. Tolerance (ppm) CFR Citation

2,4

- D 0.2 180.142 Acequinocyl 0.02 180.599 Acetamiprid 0.1 180.578 Azoxystrobin 0.02 180.507

Bifenazate 0.2 180.572

Bifenthrin 0.05 180.442

Boscalid 0.7 180.589 Carbaryl* 0.1 180.169

Carfentrazone

- ethyl 0.1 180.515 Cryolite (Fluorine compounds)** 10 180 .145

Cyfluthrin and beta

cyfluthrin 0.01 180.436

Cypermethrin and an isomer zetacypermethrin 0.05 180.418

Deltamethrin 0.1 180.435

Diflubenzuron 0.06 180.377 Diquat 0.02 180.226

Emamectin 0.02 180.505

Etoxazole 0.01 180.593

Fenbutatin

- oxide 0.5 180 .362 Fenpropathrin 0.1 180.466 Fenpyroximate 0.1 180.566

Flubendiamide 0.06 180.639

Flumioxazin 0.02 180.568

Glufosinate amrnonium 0.1 180.473 Glyphosate 1 180.364

Halosulfuron

- methyl 0.05 180.479 Hexythiazox 0.3 180.448 Imidacloprid 0.05 180.472

Lambda

- cyhalothrin and an isomer gamma

cyhalothrin 0.05 180.438106

Chemical U.S. Tolerance (ppm) CFR Citation

Metconazole 0.04 180.617

Methidathion 0.05 180.298 Methoxyfenozide 0.1 180.544

Metolachlor 0.1 180.368 Napropamide 0.1 180.328 Oryzalin 0.05 180.304 Oxyfluorfen 0.05 180.381 Paraquat 0.05 180.205

Pendimethalin 0.1 180.361

Penoxsulam 0.01 180.605 Propiconazole 0.1 180.434 Propylene oxide 300 180.491 Propylene oxide*** 10 180.491 Pyraclostrobin 0.04 180.582 Pyridaben 0.05 180.494 Pyriproxyfen 0.02 180.510

Rimsulfuron 0.01 180.47 8 Sethoxydim 0.2 180.412 Spinetoram 0.04 180.635 Spinosad 0.02 180.495 Spirodiclofen 0.1 180.608 Spirotetramat 0.25 180.641 Sulfuryl fluoride**** 3 180.575

Tebuconazole 0.05 180.474

Thiamethoxam 0.02 180.565 Trifloxystrobin 0.04 180.555

Triflural in 0.05 180.207

 * Carbaryl

- Nut, tree group 14, except walnut.

 ** Cryolite

- Nut, tree, Group 14, postharvest.

 *** Propylene oxide

- Nut, tree, group 14 (reaction prod. propylene chlorohydrin).

 **** Sulfuryl fluoride

- Nut, tree, Group 14, postharvest.

Table 30 Tolerances (ppm) Established Internationally on the Tree Nuts Crop Group 14: (FASonline: mrldatabase.com; tolerances as of June, 2009)
Compound US (ppm) Codex (ppm) EU (ppm)
2,4

- D 0.2 0.2 0.05 Acetamiprid 0.1 0.01 Acetamiprid 0.1

- 0.01

Azo xystrobin 0.02

- 0.1

Bifenazate 0.2 0.2 0.01

Bifenthrin 0.05

- 0.05

Boscalid 0.7 0.05

- Carfentrazone

- ethyl 0.1

- 0.01 Chlorpyrifos 0.2

- 0.05 Cyfluthrin 0.01

- 0.02107

Compound US (ppm) Codex (ppm) EU (ppm)

Etoxazole 0.01

- 0.02

Fenbutatin

- oxide 0.5

- 0.05

Flumioxazin 0.02

- 0.05

Glufo sinate

Ammonium 0.1 0.1

-

Glyphosate 1.0

- 0.1

Lambda

- cyhalothrin 0.05

- 0.05

Methidathion 0.05

- 0.05 Methoxyfenozide 0.1 0.1 0.02

Metolachlor 0.1

- 0.05 Paraquat dichloride 0.05 0.05 0.02

Pendimethalin 0.1

- 0.05 Propiconazole 0.1

- 0.05 Pyraclo strobin 0.04

- 0.02

Rimsulfuron 0.01 0.05 Sulfuryl Fluoride 10.0 (post harvest) 3

-

Trifloxystrobin 0.04 0.02 0.02

Zeta

- cypermethrin 0.05

- 0.05

Table 31. Tolerances (ppm) Established in U.S. on Specific Tree Nuts in the Tree Nut Crop Group 14 (Al mond and Pecan are the Representative Commodities): (ECFR, NG 2009)

Chemical CFR

Citation Almond Pecan Walnut Pistachio

2,4

- D 180.142

- - - 0.05 Acequinocyl 180.599

- - - 0.02 Acetamiprid 180.578

- - - 0.1

Aldicarb 180.269

- 0.5

- - Avermectin B1

an d its delta

- 8,9

- isomer 180.449 0.005

- 0.005

-

Azinphos

- methyl 180.154 0.2 0.3 0.3 0.3 Azoxystrobin 180.507

- 0.01

- 0.5 Benomyl 180.294

- - - 0.2

Bifenazate 180.572

- - - 0.2

Bifenthrin 180.442

- - - 0.05

Boscalid 180.589

- - - 0.7 Buprofezin 180.5 11 0.05

- - 0.05 Captan 180.103 0.25

- - - Carbaryl 180.169

- - 1 0.1

Carbon disulfide 180.467 0.1

- - - Carfentrazone

ethyl 180.515

- - - 0.1

Chlorothalonil 180.275 0.05

- - 0.2 Chlorpyrifos 180.342 0.2 0.2 0.2 0.2108

Chemical CFR

Citation Almond Pecan Walnut Pistachio

Clofentezine 180.446 0.5

- 0.02

- Crotoxyphos 180.330

- - 0.05 0.01 Cryolite (Fluorine compounds) 180.145

- - - 10 (postharvest) Cyfluthrin and

beta

- cyfluthrin 180.436

- - - 0.01

Cypermethrin and

an isomer zetacypermethrin 180.418

- - - 0.05

Cyprodinil 180.532 0.02

- - 0.1 Cyprodini l 180.532

- - - - Diazinon 180.153 0.5

- - - Dicofol 180.163

- 0.1 0.1

- Difenoconazole 180.475 0.05

- - - Diflubenzuron 180.377

- - - 0.06

Dimethoate including its oxygen analog 180.204

- 0.1

- -

Diuron 180.106

- 0.05 0.05

- Dodine 180.172

- 0.3 0. 3

- Emamectin 180.505

- - - 0.02

Endosulfan 180.182 0.3 0.2 0.2

- Ethephon 180.300

- - 0.5

- Ethylene oxide 180.151

- - 50 (black walnut) -

Etoxazole 180.593

- - - 0.01

Fenarimol 180.421

- 0.02

- - Fenbuconazole 180.480 0.05 0.05

- - Fenbutatin

- oxi de 180.362

- - - 0.5

Fenhexamid 180.553 0.02

- - 0.02 Fenpropathrin 180.466

- - - 0.1 Fenpyroximate 180.566

- - - 0.1

Fenvalerate 180.379 0.2 0.2 0.2

- Fluazifop

- butyl 180.411

- 0.05

- - Fludioxonil 180.516

- - - 0.1

Flumioxazin 180.568 0.02

- - 0.0 2

Forchlorfenuron 180.569 0.01

- - 0.01

Glufosinate

amrnonium 180.473

- - - 0.1

Glyphosate 180.364

- - - 0.1

Halosulfuron

methyl 180.479

- - -- 0.05

Hexythiazox 180.448

- - - 0.3 Imidacloprid 180.472

- 0.05

- 0.05 Inorganic bromide

residues resultin g from fumigation 180.123 200 (postharvest) 200

(postharvest 200

(postharvest 200

(postharvest109

Chemical CFR

Citation Almond Pecan Walnut Pistachio

with methyl

bromide Iprodione 180.399 0.3

- - - Kresoxim

- methyl 180.554

- 0.15

- - Lambda

cyhalothrin and an isomer gamma

cyhalothrin 180.438

- - - 0.05

Mala thion 180.111 8 8 8

- Maneb 180.110 0.1

- 0.05

- Metalaxyl 180.408 0.5

- 0.5

- Metconazole 180.617

- - - 0.04 Methomyl 180.253

- 0.1

- - Methoxyfenozide 180.544

- - - 0.1 Methyl parathion 180.121 0.1 0.1 0.1

- Myclobutanil 180.443 0.1

- - Naled 18 0.215 0.5

- 0.5

- Napropamide 180.328

- - - 0.1

Norflurazon 180.356 0.1 0.1 0.1

- Oryzalin 180.304

- - - 0.05 Oxyfluorfen 180.381

- - - 0.05 Paraquat 180.205

- - - 0.05

Pendimethalin 180.361

- - - 0.1

Penoxsulam 180.605

- - - 0.01

Permethrin 180.37 8

- - 0.05 0.1

Phosalone 180.263 0.1

- - - Phosmet 180.261

- - - 0.1 Phosphine 180.225 0.1 0.1 0.1 0.1 Piperonyl butoxide 180.127 8 (postharvest) - 8 (postharvest) -

Propargite 180.259 0.1

- 0.1

- Propiconazole 180.434

- - - 0.1 Pymetrozine 180.556

- 0.02

- - Pyraclostrobin 180.582

- - - 0.7 Pyrethrins 180.128 1 (postharvest) - 1 (postharvest) -

Pyridaben 180.494

- - - 0.05 Pyrimethanil 180.518 0.2

- - 0.2 Pyriproxyfen 180.510

- - 0.02 0.02

Rimsulfuron 180.478

- - - 0.01 Sethoxydim 180.412

- - - 0.2

Simazine 180.213 0.25 0.2 0.2

- Spinetoram 180.635

- - - 0.04 Spinosad 180.495

- - - 0.02 Spirodiclofen 180.608

- - - 0.1 Sulfuryl fluoride 180.575

- - - 3 (postharvest)110

Chemical CFR

Citation Almond Pecan Walnut Pistachio

Tebuconazole 180.474

- - - 0.05

Tebufenozide 180.482

- - 0.1

- Tetracon azole 180.557

- 0.04

- - Thiamethoxam 180.565

- - - 0.02 Thiophanate

methyl 180.371 0.1 0.1

- 0.1

TPTH (Triphenyltin hydroxide (fentin hydroxide)) 180.236

- 0.05

- -

Trifloxystrobin 180.555 0.04

- - 0.04 Trifloxysulfuron 180.591 0.02

- - - Ziram 180. 116 0.1 0.1

- -

Table 32. Tolerances (ppm) Established on the Tree Nut Crop Group 14 Animal

Feed Item

– Almond Hulls. (NG, 2009).

Chemical Tolerance (ppm) CFR Citation

2,4

- D 0.1 180.142 Acequinocyl 2 180.599 Acetamiprid 5 180.578

Avermectin B1 and its delta

- 8,9

- isomer 0.1 180.449 Azinphos

- methyl 5 180.154 Azoxystrobin 4 180.507 Benomyl 1 180.294

Bifenazate 15 180.572

Bifenthrin 2 180.442

Boscalid 17 180.589 Buprofezin 2 180.511 Captan 75 180.103 Carbaryl 50 180.169

Carbon disulfide 0.1 180 .467

Carfentrazone

- ethyl 0.2 180.515

Chlorothalonil 1 180.275 Chlorpyrifos 12 180.342

Clofentezine 5 180.446 Cyfluthrin and beta

- cyfluthrin 0.5 180.436 Cypermethrin and an isomer zetacypermethrin 6 180.418

Cyprodinil 8 180.532

Deltamethrin 2.5 180. 435

Diazinon 3 180.153

Difenoconazole 5 180.475

Diflubenzuron 6 180.377

Emamectin 0.2 180.505111

Chemical Tolerance (ppm) CFR Citation

Endosulfan 1 180.182 EPTC (S

- Ethyl dipropylthiocarbamate) 0.1 180.117

Etoxazole 2 180.593

Fenbuconazole 1 180.480

Fenbutatin

- oxide 80 180.362

Fenhexamid 2 180.553 Fenpropathrin 4.5 180.466 Fenpyroximate 3 180.566

Fenvalerate 15 180.379

Flubendiamide 9 180.639

Flumioxazin 0.7 180.568

Forchlorfenuron 0.01 180.569

Glufosinate amrnonium 0.5 180.473 Glyphosate 25 180.364 Hexythiazox 10 180.448

Imidac loprid 4 180.472 Iprodione 2 180.399

Lambda

- cyhalothrin and an isomer gamma

cyhalothrin 1.5 180.438

Malathion 50 180.111 Metalaxyl 10 180.408

Metconazole 4 180.617

Methidathion 6 180.298 Methoxyfenozide 25 180.544 Methyl parathion 3 180.121

Metola chlor 0.3 180.368 Myclobutanil 2 180.443

Naled 0.5 180.215 Napropamide 0.1 180.328

Norflurazon 1 180.356 Oryzalin 0.05 180.304 Oxyfluorfen 0.1 180.381 Paraquat 0.5 180.205

Pendimethalin 0.4 180.361

Penoxsulam 0.01 180.605

Permethrin 20 180.378

P hosmet 10 180.261 Propargite 55 180.259 Propiconazole 7 180.434 Pyraclostrobin 7 180.582 Pyridaben 4 180.494 Pyrimethanil 12 180.518 Pyriproxyfen 2 180.510

Rimsulfuron 0.09 180.478 Sethoxydim 2 180.412

Simazine 0.25 180.213 Spinetoram 2 180.635112

Chemical Tolerance (ppm) CFR Citation

Spinosad 2 180.495 Spirodiclofen 20 180.608 Spirotetramat 9 180.641

Tebuconazole 6 180.474

Tebufenozide 25 180.482

Thiamethoxam 1.2 180.565 Thiophanate

- methyl 0.5 180.371 Trifloxystrobin 3 180.555 Trifloxysulfuron 0.01 180.591

Trifluralin 0.05 180 .207

REQUIRED NUMBER OF CROP FIELD TRIALS FOR CROP GROUP 14 AND

COMPARISON OF EPA CROP PRODUCTION REGIONS WITH THE NAFTA

CROP PRODUCTION REGIONS :

A reevaluation of crop production data from the 2007 USDA Agricultural Census

shows that the amended Tree nut crop group 14 will not require additional field trials even though the acreage for the group increased 639,119 A from 1991 to 2007 (EPA OPPTS 860.1500). However, the number of field trials for the group would remain the

same because in 1991 almond an d pecan consumption had a low dietary intake. This concept of dietary consumption will be reviewed sometime in the future as a guideline revision. If a crop group tolerance is pursued the number of field trials will still be 10 (Table 33). Almonds have increased in acreage since 1991 by 362,245, pecan by 128,809, and pistachio by 128,809, and pistachio by 102,213. The only tree nut to decline in acreage from 1991 from 24,000 to 17,811 A was the macadamia nut.

The current distribution of the crop file d trials for the representative commodities is listed in Table 34. Location of the field trial production regions for the proposed tree nut crops are listed in Table 35. The most common residue field trial region for the tree

nut commodities is Region 10

.

Table 33. Required Number of Field Trials for Tree Nut Commodities to Establish the Tree Nut Crop Group 14. (40 CFR 180.41(14), [OPPTS 860.1500, Table 2). Representative Commodity Number of Field Trials for

Commodities if Not Part of the Crop Group Number of Field Trials for

Commodities as Part of the Crop Group

Almond 5 in current guidelines 5

Pecan 5 in current guidelines 5

Total 10 10

 Attachment 7. Methodology for Determining Number of Field Trials, in Appendix A of the EPA OPPT S 860.1500 Crop Field Trials.113

Table 34. EPA Crop Production Regions Suggested Distribution of the Tree Nut Crop Field Trials > 3 for Both the Representative Commodities and other Commodities in the Crop Group based on Current EPA Guidelines (OPPTS

86 0.1500) Commodity Field

Trials

# Region

# 1 Region

# 2 Region

# 4 Region

# 6 Region

# 8 Region

# 10 Region

# 12 Region

# 13

Almond* 5 5

Chestnut 3

Coconut 5 5

Hazelnut 3 3

Macadamia

nut 3 3

Pecan* 5 2 1 1 1

Pistachio 5 5

Walnut 5 5

Total 10 2 1 1 1 5 3 *Almond and pecan are the representative commodities for the Tree nut crop group.

Table 35. EPA Crop Production Regions for the Tree Nut Crops. [Representative

C ommodities (*) for the Crop Group. Commodity** 1 2 3 4 5 6 7 8 9 10 11 12 13

Almond* 5

Beechnut X X X

Betelnut Guam

Brazil nut X Brazilian pine X X X X Bunya

Bur Oak X X X X X X X X

Butternut X X X X Cajou

Candlenut X

Cashew X

Castanha

- do

maranhao

Chestnut X X X X X X X Chinquapin

Coconut X Coquito nut X

Dika nut Gingko X X

Guiana chestnut

Hazelnut 3

Heartnut X X X X114

Commodity** 1 2 3 4 5 6 7 8 9 10 11 12 13 Hickory nut X X X X X Japanese horse

chestnut X

Macadamia nut X X Monkey

- pot Monkey puzzle X X X

Okari nut

Pachira nut

Pecan* 2 X 1 X 1 1 X X Pequi

Pili nut

Pine nut X X X X

Pistachio X Sapucaia nut Tropical almond X

Walnut X

Yellowhorn X

 * Representative commodities are almond and pecan.

 ** Commodities that are not representative commodities have field trial regions generally based on the USDA Plants Database, 2006.

Efforts to update the NAFTA regio ns may begin in 2010

- 2011. It would be a ChemSAC project. Any future conflict in testing between regions can generally be resolved by having the ChemSAC review the test protocol regions before residue trials are initiated and any differences can also b e resolved by input from the International Crop Grouping Consulting Committee (ICGCC) as well as reviews by Canada, PMRA.

CODEX CLASSIFICATION OF PROPOSED COMMODITIES AND EPA FOOD

AND FEED COMMODITY VOCABULARY: ( See Table 36 Comparisons of Tree Nut Crop Groups: Codex Group (022) and EPA Group (14). Data prepared by Dr’s.

Yuen

- Shaung NG, and Dr. Bernard A. Schneider, US EPA and USDA IR

- 4, 2004, 2009, 2010).

Another important aspect of crop grouping is the harmonization effort with the

Codex Classificat ion of Foods and Animal Feeds. The current EPA crop group for Tree nut group 14 is very similar to the corresponding Codex Group 022, Tree Nuts , which

consists of nineteen commodities including matches to the all the twenty

- four commodities in the propose d amended EPA crop group 14. The differences are because several of the Codex commodities refer to another commodity in a similar manner to the EPA Food and Feed Commodity Vocabulary Lookup to Preferred Tolerance Terms, such as “Pignolia”, see Pine nuts. Several Codex names are equivalent to lookup terms in the EPA Food and Feed Commodity Vocabulary like filberts is hazelnuts. The thirty commodities listed by Codex are really nineteen individual commodities. The U.S. is115

proposing to add the following co mmodities: African tree nut, betelnut, Brazilian pine, bunya, bur oak, cajou, candlenut, castanha

– do

- maranhao, chinquapin, coquito nut, ginkgo, Guiana chestnut, heartnut, monkey pot, monkey puzzle, okari nut, pachira nut, pequi, and yellowhorn that are not yet in the Codex system. Recently, Codex has been reviewing the list of commodities in a revised Tree nut group 022 (Secretariat, 2010) derived from

the USDA IR

- 4 proposal and these will also be listed in Table 34 with the corresponding EPA commodity ter m.

Note that the current Codex crop group does not have representative commodities. A revision of the Codex Classification is underway with consideration to include adding new commodities, creating subgroups, and selecting representative commodities. A revision of the Codex Classification is underway with consideration to include adding new commodities, creating subgroups, and selecting representative commodities. The

IR

- 4/EPA Crop Grouping Working Group and the International Crop Grouping Consulting Committee (ICGCC) are making every effort to cooperate with the Codex revision effort. The proposed revised Tree Nut Group was discussed within the ICGCC workgroup which includes representatives from the Codex Revision workgroup. The expanded Tree nut g roup and the representative commodities proposed in this petition

would facilitate the harmonization of the U.S. and the Codex crop classification systems. In the next proposed revision to the Codex Classification of Foods and Animal Feeds we would expect these changes to be considered as additions to their Tree nut group in the harmonization effort that Bill Barney, USDA IR

- 4 is coordinating with the Codex delegation. Therefore, this proposal will not only increase harmonization with the

Canadian and N AFTA crop grouping system, but it is compatible with the international system of Codex. The Food Quality Protection Act of 1996 placed increased emphasis on using Codex MRLs in setting tolerances for pesticides in the U.S.

Table 36. Comparison of EPA Tr ee Nut Group 14 with Codex Tree Nut Group 022. ( B ased on Ng and Schneider, 2010). In the Codex Commodity Names the Current Codex Classification is in Bold and the ICGCC Commodities Being Considered are not Highlighted.

Codex Group # Proposed Codex Comm odity

Name Codex Code

No. EPA Group

No. Proposed EPA. Commodity

Name

022 AFRICAN NUT TN 3100 14 AFRICAN NUT TREE

022 ALMOND S TN 0660 14 ALMOND

022 TROPICAL ALMOND TN 0677 14 ALMOND, TROPICAL

022 BEECH NUTS TN 0661 14 BEECHNUT

022 BETTEL NUT TN XXXX 14 BETELNUT

022 BRAZIL NUT TN 0662 14 BRAZIL NUT

022 BRAZILIAN PINE TN 3101 14 BRAZILIAN PINE

022 BUNYA TN 3101 14 BUNYA

022 OAK NUT TN 3107 14 BUR OAK

022 BUTTER NUT TN 0663 14 BUTTERNUT

022 CAJOU, SEE CASHEW NUT

- 14 CAJOU

022 CANDLE NUT

- TN 31 03 14 CANDLENUT116

Codex Group # Proposed Codex Comm odity

Name Codex Code

No. EPA Group

No. Proposed EPA. Commodity

Name

022 CASHEW NUT TN 0295 14 CASHEW

022 CASTANHA

- DO

MARANH A O, SEE

PACHIRA NUT - 14 CASTANHA

- DO

- MARANH A, SEE PACHIRA NUT (Proposed)

022 CHESTNUTS TN 0664 14 CHESTNUT

022 CHINQUAPIN, SEE CHESTNUTS TN 4683 14 CHINQUAPIN

022 COCONUT TN 0665 14 COCONUT

022 COQUITO NUT

- 14 COQUITO NUT

022 DIKA NUT TN 3104 14 DIKA NUT

022 GINKGO TN 3105 14 GINKGO

022 GUIANA CHESTNUT, SEE

PACHIRA NUT - 14 GUIANA CHESTNUT

022 HAZELNUTS TN 0666 14 HAZELNUT

022 FILBERTS, SEE HAZELNUTS IN 4685 14 HAZEL NUT

- HEARTNUT, SEE WALNUTS

- 14 HEARTNUT

022 HICKORY NUTS TN 0667 14 HICKORY NUT

022 JAPANESE HORSE

CHESTNUT TN 0668 14 JAPANESE HORSE

- CHESTNUT

022 MACADAMIA NUTS TN 0669 14 MACADAMIA NUT

- SEE SAPUCAIA NUT

- 14 MONKEY POT

022 MONGONGO TN 3106 14 MO NGONGO

022 QUEENSLAND NUTS, SEE

MACADAMIA NUTS TN 4695 14 NUT, MACADAMIA

022 BUSH NUTS, SEE MACADAMIA

NUTS - 14 NUT, MACADAMIA

022 TREE NUTS TN 0085 14 NUT, TREE, GROUP 14

022 OKARI NUT TN 3108 14 OKARI NUT

022 PACHIRA NUT TN 0670 14 PACHIRA NUT

- - - 14 PEACH PALM, NUT

022 PECANS TN 0672 14 PECAN

022 PEQUI SEED TN 3109 14 PEQUI

022 PILI NUTS TN 0674 14 PILI NUT

022 PINE NUTS TN 0673 14 PINE NUT

022 PISTACHIO NUT TN 0675 14 PISTACHIO

022 SAPUCAIA NUT TN 0676 14 SAPUCAIA NUT

022 WALNUTS TN 0678 14 WALNUT SEE WALNUT, ENGLISH AND
WALNUT, BLACK

022 WALNUTS, BLACK, SEE

WALNUTS TN 4697 14 WALNUT, BLACK

022 WALNUTS, ENGLISH;

WALNUTS, PERSIAN, SEE

WALNUTS TN 4600 14 WALNUT, ENGLISH

022 Y ELLOWHORN TN 0679 14 YELLOWHORN117

PREPARATION, FOOD FORMS, CO OKING METHODS, FOOD FORMS, SPECIFIC USES, MEDICINAL USES, FRUIT YIELDS, AND MARKETING

STANDARDS FOR MEMBERS OF THE TREE NUT CROP GROUP:

Preparation and Cooking Methods for the Tree Nuts:

The thirty

- two commodities in the proposed amended Tree nut crop group are all long living perennial dicots (flowering plants) that are deciduous small to large trees that produce an edible fruit called a nut or kernel.

Most nuts sold to consumers are processed in some way such as cooking the kernels in oil or dry ro asting followed by a coating of salt or other seasonings. Some nuts undergo blanching to remove skin or testa that covers the kernel before further cooking. Many nuts are cut into smaller pieces depending their end use such as for candy or bakery

items. The two cooking methods that are done to the nut before it is published such as dry or oil roasting. Dry roasting uses radiant heat to the kernels while oil roasted nuts are immersed in hot oil such as peanut or palm oil. Additional nut coverings includ e salt, sugar, corn starch, cocoa, honey, corn syrup, and many other combinations.

The members of this crop group have similar uses, and all are consumed fresh or consumed cooked or raw in various recipes including salads, oils, and stir fries. They c an be used fresh or in a dehydrated form. Some of these tree nuts also have medicinal properties. Tree nuts have many food and nonfood uses. They also have ornamental landscape uses, plant extracts for medicinal uses, and uses as dyestuffs. Specific us es for

some of the Tree nuts will be discussed below.



### Ingredients Containing Tree Nuts

Following is a list of tree nuts and some ingredients that contain tree nuts:

 Almond

- butter, paste (marzipan), flavoring, extract

 Brazil nut

 Cashews

- butter, flavo ring, extract

 Chestnuts (water chestnuts are OK, they're not nuts despite their name)

 Hazelnuts or filberts

 Hickory nuts

 Macadamia nuts, Queensland nuts

 Pecans

 Pine nuts, pinon, pignoli

 Pistachios

 Walnuts

 Gianduja (chopped nuts mixed with chocolate)

 Nut

- N uts artificial nuts

 Nut Meal

 Mashuga nuts (pecans)

 Nougat118

 Nut oils

 Nut paste

 Nutella

Specific Uses of Tree Nuts:

African Tree Nut :

These are valued both as food and as a condiment (the dried, ground seeds are known as “njansang”) throughout much of Wes t and Central Africa and particularly Camaroon, which cultivates this tree and exports the nuts and nut products, and among emigrant populations from these areas now living in Europe. The seeds are available in local markets and in places where there is a large West African population. In preparation for cooking the fallen fruits are typically piled together and the pulp allowed to rot. The yellow nuts are then removed, boiled extensively, and cracked to reach the kernels inside. The kernels may then be pressed for oil or left to dry a long time in the sun before being eaten or crushed or ground for use as a seasoning and thickening agent in soups, stews, or fish

- based dishes. Sometimes the crushed nuts are made into a sauce similar to peanut sauce. The whole nut and kernel store well for long period of time. The oil from the nut is also valued for cosmetic use and as a drying oil in paints and varnishes. The light wood is prized as a substitute for balsa and is carved for many

decorative and household uses. The tree is also important for planting in hedgerows, as a shade tree for other crops, such as coffee, and for soil improvement as it helps fix and return nutrients to the soil in which is it planted.

Almond:

Preparation for cooking the shells must be removed and nut is eaten raw or roasted, or processed into various food products. Direct eating, ground into flour, ingredient in confections, made into syrup, and processed into an almond milk substitute.

The kernel is used either blanched or u nblanched. Almond kernels are sliced or diced are

used in pastry, ice cream, breakfast cereals, and vegetable mixtures. The kernels are ground in paste to be used in pastry and for making marzipan. Amaretto flavor is made

from almond kernels. Almond oi l is primarily monosaturated being 65 % oleic and 30 % linoleic which have long term storage stability. Almonds are the most widely

- used nut for confectionery items like candy bars, cakes, toppings, etc. Much of the crop is roasted

and flavored or salted and sold in cans; broken and small kernels go to confectionery or coated with chocolate. About 99% of almonds in the USA are shelled prior to sale, and

1% sold in

- shell.

Beechnut:

Removed easily from the shell and eaten raw, cooked, dried or roasted. I t is used for beech nut oil popular in Europe for cooking and salad oil tasting similar to olive oil.119

Betelnut:

Betelnut is not cooked, and it is removed from hard shell and dried or ground into a powder or cured for chewing. Nuts are used in a prepa ration of fresh betel pepper leaves ( Piper betle L.) smeared with lime or cloves and wrapped around the nut which is chewed for enjoyment. The seeds are cut into narrow pieces and rolled inside Betel Pepper leaf, rubbed over with lime and chewed by the na tives. Black and red dyes are

made from the nuts.

Brazil nut:

Direct eating and oil, which extracted from the nuts and used by indigenous and rural people for cooking oil, lamps, soap, and livestock feed. Removed from shell and eaten raw, salted, or roasted.

Brazilian pine :

The Brazilian pine is eaten raw as a winter snack or boiled. Used as s eeds, ornamental, beads, and for its wood.

Bunya:

Bunya is removed from shell and eaten raw, salted, or roasted. Seeds removed from cone, eaten whole or ground into a paste which is eaten raw or baked into a

bread and for d irect eating, ornamental, essential oils, wood, flour.

Bur Oak:

Some nuts contain low enough tannin levels that they may be eaten raw; other nuts require soaking or over wintering to leach out tannins before they can be consumed. Some nuts contain low enough tannin levels that they may be eaten raw; other nuts require soaking or overwintering to leach out tannins before they can be consumed. Direct eating, baked goods, cooking, co ffee substitute, ornamental, and wood.

Butternut:

Seed can be eaten raw or ground into a powder and used with cereal flours in making cakes, biscuits, muffins, bread, sweets, and ice cream. Is also occasionally pressed for oil or pickled (unripe fruit ). The timber is used in woodworking and the shells are used in dye.120

Cajou:

Cajou fruit can be eaten fresh, while the nut is roasted and eaten. A drink is also produced from the apples. p reparation for cooking: False fruit may be eaten raw; nuts

ar e removed from hull and roasted. Fruit is eaten fresh, nut is roasted and eaten. A drink is also produced from the apples.

Candlenut :

Candlenut is mostly used for oil for illumination, soap making, and varnishes. Preparation for cooking involves re moving the nut from shell and roasted, often combined with sea salt and hot peppers or a relish to form a condiment. The k ernels when roasted and cooked are considered edible. It is also used for flavoring, seeds, beads, lipids, folklore and as a mammal poisons.

Cashew:

Cashews are high in protein and is used for cooking is s helled, salted, and then

roasted. The nutmeat is eaten directly or used in stir fried foods. The “cashew apple which is the swollen peduncle of the fruit ”is used fresh or in jams, jellies, and juice, and the oil is used for industrial purpose s in paints, varnishes and inks.

Castanha

- do

- maranh ã o:

Removed from pod; eaten raw, boiled, roasted, or fried. Seeds; boiled, fried, roasted, or ground to make a hot drink.

Chestnu t:

The chestnuts are eaten raw, or more commonly after boiling or roasting. Major uses are candies, stuffing for Thanksgiving turkeys, and in Italy, they are ground to fine flour for confectionery; in fact, prior to maize introduction to Europe, Chestn ut honey is also available. Italian polenta was made from chestnut flour (polenta is like Italian grits).

It is served r aw, boiled, roasted, cooked with meat, pureed, ground into flour, and candied. To prepare for cooking chestnuts are scored to release steam and roasted in the oven or over a fire, then peeled.

Coconut:121

Coconuts are used to derive a number of products: Copra is the dried endosperm or "white meat" of coconut, commonly seen in cakes and candies. The coconut meat may be eaten raw, dri ed, or processed for consumption. It is dried to 2.5 % moisture content, shredded, and used in cakes, candies, and other confections. Coconut “water” may be drained from nut and drunk, fermented, or used in cooking. Coconut water is obtained

from immatu re coconuts, providing a welcome source of fresh, sterile water in hot, tropical environments. Oil is extracted from dried coconut meat. Apical buds eaten raw, picked, or canned. Sap and nectar is collected and drunk or fermented. The sap from the

cut end of an inflorescence produces up to a gallon per day of brown liquid, rich in sugars and vitamin C. It can be boiled down into a brown sugar called "jaggery", used as a sugar substitute in many areas. Left to ferment, the sap makes an alcoholic toddy, and later vinegar; "arrack" is made by distilling the toddy, and is a common, potent alcoholic spirit. Mainly oil used in cooking fats soaps and is also used in confections and cookery. Production of coconut oil in 2002 was slightly more than olive oil production, and coconut cake the residue left after pressing oil from copra, used as livestock feed. The coir is the fiber from the husk, used as packing material, rope, matting, fuel, and in potting mixes.

Coquito nut:

The seed kernel is eaten as a nut, made into sweetmeats, or pressed to produce

edible cooking oil, or used in confections. The sap taken from felled trees is cooked into

sugary syrup or “palm honey”, or may be fermented into wine often called Chilean wine palm. and the fruits may be c andied. To harvest the sap, the crown of leaves is cut off, after which the sap begins to flow. This will continue for several months, provided a thin slice is shaved off the top each morning, until the tree is exhausted. Individual trees can yield up to 9 0 gallons. The sap is high in sucrose and other simple sugars. The fruits are harvested as they ripen or fall to the ground. The nuts will keep for months in cool, dry

storage.

Dika nut:

Common throughout West Africa but not well known beyond excep t as a nutritional supplement/weight loss drug. Preparation for cooking is to remove the flesh of the fruit is used for fresh eating, jams, jellies, juices, and to produce a high quality wine. Whole nuts are dried, stored, and ground into a paste before using in soups stews, and other dishes. Dika is an important ingredient in ogbono soup, a regional staple food, in which it serves both to thicken and to enhance flavor. The kernel, when ground, is an extremely effective thickener and is used to make man y traditional dishes more gelatinous as well as to add flavor. The seeds may be pressed for oil, which is used in cooking and to make margarine. Dika kernels when ground has also been used as a cheap chocolate substitute and in the making of bread called dika bread.122

Ginkgo:

Canned or dried seeds are boiled and used in soups. Seeds are boiled or roasted. The kernel is removed from surrounding fruit and shell, and roasted or canned. Canned or dried seeds are boiled and used in soups. Seeds are boil ed or roasted. Leaves are used

in traditional Chinese medicine.

Guiana chestnut :

Preparation for cooking includes removed from shell and eaten raw, boiled, fried, or

roasted for d irect eating, and used for ornamental, wood. Flavor is similar to

chest nuts, and the roasted seeds can be ground to make a hot drink similar to hot

chocolate.

Hazelnut :

Removed from shell and roasted, eaten raw, ground into a paste, or processed in any of several hazelnut flavored products. Removed from shell and roast ed, eaten raw, ground into a paste, or processed in any of several hazelnut flavored products. It is used in direct eating, confections, liqueur, nut butter, flavoring, baking, ornamental, and wood. Most of the crop is utilized immediately for the holida y market from Halloween, Thanksgiving, and through Christmas. Premium nuts are sold in

- shell, and exported; currently this is only 5

- 10% of the market, but growing. Over 90 % are sold as in shelled. A large portion of the crop is cracked and kernels a re used for cereals, confectionery, mostly in baked goods and in canned mixed nuts. Hazelnut oil has a fatty acid composition similar to olive oil. The oil content ranges from 60

– 72 %.

Heartnut:

Removed from hull and eaten raw or used in cooking.

Hickory nut:

For preparation for cooking it is removed from shell with difficulty and eaten raw or roasted. It is used for direct eating, and used in ice cream, cookies and candies.

Japanese horse

- chestnut:123

For preparation for cooking it is removed from the shell and soaked in water to leach out toxic saponins, then cooked or dried and ground into flour. It is also grown as an ornamental crop.

Macadamia nut :

The macadamia nut is removed from the shell with extreme difficulty, and eaten

raw, ro asted, or processed for consumption for oil and nut butter. It is also processed for use in confections and bakery items. It is a gourmet nut that is roasted , unsalted or salted, flavored or covered with chocolate. The extracted cooking oil is similar to olive oil in its healthy monosaturated fat content.

Monkey pot:

Seeds are shelled, and then eaten raw, roasted or boiled. Reputedly has a

walnut/almond

- like flavor.

Mongongo:

Mongongo is prepared for cooking by boiled fresh or dried and then boiled to remove the tough skin. The flesh is then eaten or made into an apple

- sauce like concoction. Some Bushmen remove the flesh from the fresh fruit and dry it for later consumption. The shell around the kernel is extremely hard and to get to the nu tritious nut the pit must be roasted and dried for a long time, usually by burying in hot sand near a fire until it can be cracked open. Alternatively, some people collect the pits from elephant dung as elephants love the sweet fruit and the trip through the digestive tract leaves the pit weak enough to be cracked open with a rock. The nutmeat is eaten whole, or pounded and added as an ingredient to various other dishes.

Okari nut:

Okari nut is used for direct eating; rarely for timber as it is more valuable as a food

source.

Pachira nut:

Seed removed from fruit and eaten raw or roasted, and is used for d irect eating.

Peach palm nut:124

The peach palm is not consumed fresh because the raw fruit is caustic. It is, however

, cooked and consumed a s a breakfast item or snack with mayonnaise or sauce. The cooking process involves boiling, peeling, halving and pitting the fruit. The fruit is also preserved or dried. Cooked fruit are used in stews, pureed for making certain dishes, or fermented t o make a drink called chichi or chincha.. Fruit are processed into flour by cooking the bunch, cutting the fruit into small pieces, removing the seeds , drying the pulp and peel, and grinding the dried material. Some attempts have been made to freeze, dry, or can the fruit. The seed is consumed fresh or cooked.

Pecan:

For direct eating, confections, ice cream, cookery, charcoal, fuel, wood. Preparation for cooking include removed from shell and eaten raw, roasted, or processed.

Over 90 % of the pecans are used for the baking (breads, brownies, muffins, pies), breakfast cereals, candy, (pralines, caramel turtles), and dairy industries (ice cream, frozen yogurt, cheese and cheese spreads)

.

Pequi:

Fruit and kernel are both eaten whole or presse d for oil. The fruit is also fermented into liquor. The nut must be removed from shell and eaten raw, roasted, or processed for other consumption. In preparation for cooking the fruit is peeled and pulp is carefully eaten, avoiding the sharp spines arou nd the pit. The pit is then cracked open to extract the kernel, which can be dried in the sun and fried with oil, or pressed for its

own.

Pili nut:

In preparing for cooking the kernel is removed from shell and eaten raw, roasted, or processed for cons umption in other products. Shoots may be used raw in salad, and fruit pulp can be boiled and eaten like sweet potatoes. Use is also for direct eating (nut, fruit pulp, shoots), oil, in confections, baking (especially in traditional Chinese “moon cakes”), soap, gum, resin.

Pine nut:

Preparation for cooking is to remove seeds from cone and eaten raw, roasted, or pressed for oil. It is used for direct eating, oil, confections, and pesto . They can be used

in stuffing’s , stews, sauces, vegetables, soups, stews, cakes, and puddings, and a major component of pesto sauces. They are also coated with chocolate and eaten as a sweet.

Pistachio:125

Pistachios are used for direct eating, or in ice cream, confections, flavoring, and in dyes. They are roasted; salted, greenish seeds are eaten raw and are an ingredient in ice creams, cakes and nougat candies. To prepare for cooking they are removed from shell and eaten raw, roasted, or processed into confections. Pistachios are marketed primarily

as in

- shell nu ts, due to the ease with which nuts can be opened without cracking. This accounts for 80 % of pistachio utilization. The remaining 20% is marketed as shelled nuts, which are also sold fresh, or processed into candies, baked goods, and ice cream.

Pistach io nuts that receive the red color on their shells to cover blemishes. The outer husks in India can be used to dye and tan clothing. A limited amount of oil is used for cooking or for cosmetics.

Sapucaia nut :

Direct eating of nut, sap as a drink. Ma y also be used in confections and for cooking oil, though no data could be found indicating the extent of this use. Preparation for cooking: Seed are removed from shell and eaten. Sap may be drained from the

tree to make a drink.

Tropical almond:

P reparation for cooking: Kernel is extracted from shell with difficulty and eaten raw or roasted. Direct eating, pressed for oil. The nutmeat and oil extracted for cooking purposes and as a salad oil in Europe. The sun dried kernels yields a semi drying cooking oil that is used as an almond oil substitute.

Walnut, black :

In preparation for cooking they are removed from shell with difficulty, eaten raw, roasted, or processed for consumption. They are used for direct eating, oil, bakery products, ice cream and candies. They are generally more expensive then the English walnut based on availability. Also used as an ornamental tree and for its fine

- grain wood as a timber product.

Walnut, English :

Walnuts are r emoved from shell with difficulty, eat en raw, and used in baked goods, roasted, or processed for consumption into oil for cooking or confections. It also has ornamental, wood stain, timber. Walnut oil has the heart healthy omega 3 oil that can improve the high density lipoproteins (HDL) and decrease low density lipoproteins (LDL).126

Yellowhorn:

Yellowhorn has its black seeds are usually roasted and the kernel is then eaten, but it also may be eaten raw. he seeds may also be pressed for oil.

MEDICINAL USES OF TREE NUTS:

There are several medicinal uses of the tree nuts stone and they are discussed below for

each of the nuts.

African Tree Nut:

All parts of the tree are used for many ailments in traditional medicine throughout the tree’s range. The bark particularly is made into a decoction or tea that is drunk to relieve everything from insomnia to diarrhea.

Almond:

Shown to reduce LDL cholesterol, reduce LDL:HDL ratio, and increase HDL

cholesterol. Also often claimed to have cancer preventing properties

Almond, Tropical :

Leaves are used in a variety of folk remedies over the range of the tree, most commonly to treat dysentery ad sickle cell anemia.

Beechnut :

Creosote made from beech wood is used internally and externally as a medicine

for various human and animal dis orders

Betelnut:

Commonly used a stimulant and an astringent, in addition to many folk remedies.

Brazil nut :

Sometimes recommended as a preventative for prostate cancer due to the high

selenium content127

Bur Oak:

Bark may be used as a tonic and ast ringent.

Butternut:

Butternut was used by various native North American Indian tribes as a laxative and tonic remedy to treat a variety of conditions.

Candlenut:

Used as purgative and laxative

- stimulant.

Cashew:

Anacardic acids found in cashews ar e lethal to gram

- positive bacteria. Cashew is

also used in folk

- remedies as an antifungal and as antivenom for snakebites

Castanha

- do

- maranhao:

The bark is used to treat stomach problems and headaches and is taken to “fortify

the blood

Coconut:

Used in folk remedies for a range of maladies.

Dika nut:

Various traditional remedies; recently a study was announced that dika nut performed well as an appetite suppressant, which has led to a craze of buying dika supplements for weight loss in the U.S. a nd abroad. It also has uses for relief of dysentery.

Ginkgo:128

Ginkgo has been claimed to enhance memory and attention, and is of interest as potential treatment of Alzhiemer’s disease. Also of importance in traditional Chinese

Medicine for various use s, including as an aphrodisiac.

Monkey puzzle :

The resin is used in the treatment of ulcers and wounds in traditional medicines.

Peach palm nut :

Fruit is used as an aphrodisiac.

Pecan:

Contains antioxidants, and can help lower high cholesterol. Al so may help reduce the risk of gallstones in women.

Pine nut:

Oil contains antioxidants and may be used for suppressing appetite.

Pistachio:

May reduce risk of heart disease and calm acute stress reactions. May be used for abdominal pain, bruises and dysentery.

Walnut, English:

Used in many English folk remedies.

USDA MARKETING STANDARDS FOR TREE NUTS:

The USDA Agricultural Marketing Service (USDA AMS 1966, 1977, 1981, and

1997 ) has established standards for marketing many of the tree nuts. For almonds in the shell the U.S. grades are U.S. Grades 1 and 2 and mixed. For U.S. grade no. 1 the almond shells should be similar varietal characteristics free from foreign materials and shells clean uniform in color free from damage, discoloration, a dhering hulls, and broken shells. Must be free of damage caused by insects, mold, and brown spot. Mixed grades include two or more varietal types. For U.S. standards for shelled almonds also should be similar varieties, whole clean and well dried, no ra ncidity, insect injury, foreign material, split broken kernels, free mold. Whole kernel size/oz should range from 16

– 18 for large

down to 50 and smaller. Brazil nut standards must have clean shells and kernels that are free from rancidity, mold, decay, and insect damage. Size classification for extra large129

must pass through a round opening 78/64 inch in diameter and count should not exceed 45 nuts/ pound. Medium sized Brazil nuts count varies from 51 to 65 nuts/lb. Hazelnut

standards are similar to o ther nuts having free from mold and insect damage and

discoloration. There are two varieties round and long type with sizes from small to jumbo. The round nut shape is preferred for the market. Mixed nuts in the shell include almonds, Brazil, hazelnut, pecan, and walnut each having a minimum size requirement. Coconut standards are for size, freedom from blemishes, free from fiber, and wet or moldy eyes. Informal grades are based on size and weight, mature U.S. dehusked are

sold into 34

– 36 kg woven pl astic or burlap sacks containing 40

– 50 coconuts, plastic mesh bags of 12 coconuts with 20

– 25 film

- wrapped coconuts weighing 17

– 18 kg. Pecan sizes vary from small to oversize with small having 96

– 120 nuts/lb and oversize

55 or less nuts/lb. Kerne l skin color varies from light to dark amber. Shelled pecan halves vary in size such as mammoth is 250 or less and small is 651

– 750 numbers of halves per pound. Pistachio nuts like all other nuts must be free from insect and mold damage, and stains on the shells. Colossal size is less than 18 nuts per ounce and small is more than 30 nuts/oz. U.S. standard grades for walnuts apply to English walnuts and not black walnuts. Walnut sizes can vary from mammoth pass through a round opening

96/64 in diamete r to baby size at nuts passing through a 74/64 in diameter hole. Shelled walnuts have tolerances for color ranging from extra light to amber as well as size tolerances for halves and/or pieces. The kernels must be well dried and free of insect,

mold or rancidity

AVAILABILITY AND STORAGE LIFE OF THE TREE NUT CROP GROUP

MEMBERS IN THE MARKETPLACE:

Tree nuts are widely available in the marketplace both from domestic production and imports. The marketing season and peak production periods for the U.S. tree nuts in the marketplace are shown in Table 37

Table 37. Marketing Season for U.S. Tree Nuts (USDA NASS Ag Handbook 729. 2006).

Tree Nut Marketing Season

Almond August 5

– November 15

Hazelnut October 1

– November 30

Macadamia nut July 1

– June 30

Pecan October 1

– March 31

Pistachio September 30

– January 30

Walnut September 15

– November 10

The availability of each commodity is as follows:

African Tree Nut:130

The seeds are available in local markets and in places where there is a large West African population

Almond:

Common throughout North America, South America, Europe, Asia, and northern Africa.

Betelnut:

Widespread in India and across South Asia in shops and marketplaces. Can be found in the U.S. in Asian specialty stores.

Brazil nut:

Imported in large quantities to the U.S. and Western Europe, and are widely available in grocery stores and markets. Direct eating and oil, which extracted from the nuts and used by indigenous and rural people for cooking oil, lamps, soap , and livestock

feed

.

Cashew:

Cashews are commonly available in the U.S. and in most parts of the world in grocery or specialty stores

Chestnut:

Available in much of Europe and Central and Southeast Asia. Often found in the U.S. in supermarkets, espe cially around the holidays

Coconut:

Available throughout most of the world.

Gingko:

China and Japan. In the U.S., ginkgo nuts can be found in Asian specialty stores.

Hazelnut:

Hazelnut and hazelnut products are common in stores throughout North Am erica, Europe, and parts of the Middle East.131

Macadamia Nut:

Common in North America, Australia, and Europe in grocery and specialty stores.

Okari Nut:

Common in local markets during the fruiting season.

Peach Palm:

Due to the strong flavor, the frui t is harvested and commercialized before full ripeness. A fresh bunch of nuts is worth $1.00 to $3.00 US dollars in the market. In Costa Rica, the San José market is supplied with fruit/nuts year

- round. Fruit is sold in markets cooked, fresh by the bunc h or minimally processed. Processing includes removing the fruit from the bunch, washing it, waxing it, sorting it, and packaging it. Fruit do not store well and deteriorate within 3 to 7 days.

Pecan:

Common in the U.S. and Europe; available througho ut much of the world.

Pequi:

No data, but may be available in local markets.

Pili Nut:

Locally in the Philippines, as well as parts of China and in Guam.

Pine Nut:

Pine nuts are available much of North America, Europe, Asia, and the Middle

East.

Pistachio:

Common in North America, South America, Europe, Northern Africa, Asia, and

the Middle East.

Tropical almond :

The n ut mostly gathered locally in the Pacific island region. May be bought in supermarkets in the island nation of Vanuatu.132

Walnut, black:

Mainly local collection and some local sale.

Walnut, English:

Common in most of the developed world.

Storage Life of Tree Nuts:

The tree nuts have relatively long storage lives (Table 38)

. Almonds and hazelnuts

can be stored for m onths either in

- shell or shelled if dry, or very long periods when frozen (years). Commercially, nuts for long

- term storage are fumigated for navel orange worm and kept at temps below 40 o F. Chestnut, macadamia nut, pine nuts and pistachios

can be stored up to a year. Pistachios can be stored up to three years frozen.

Table 38. Approximate Storage Life of Tree Nuts in Commercial Storage (Adapted Hardenburg, et al., 1986, Kays, 2003).

Tree Nut In Shell

(Months)

10°C Shelled

(Months)

10°C Shelled,

Vacuum Packaged (Years)

0 to 4.5°C Frozen

(Years)

- 18°C

Almond 15

- 30 4

- 6 1

- 2 > 1

Chestnut 12

- 1 1

- 2

Hazelnut 15

- 30 6 1 1

- 2

Macadamia nut 12

- - - Pecan 6 4

- 6 1

- 2 1

- 2

Pine nut 12

- - - Pistachio 12 15 1

- 2 3

Black Walnut

- 8

- - English Walnut 6

- 12 6 1

- 3 1

- 2

CHANGES TO EPA DATABASES NEEDED FROM REVISIONS TO THE TREE

NUT CROP GROUP:

The revisions to the amended Tree nut Crop Group 14 will affect the need to update many Risk Assessment Models, Residue Chemistry Guidelines, OPP databases, and/or HED Standard Operating Procedures (SOP).133

The affected EPA databases may include the following:

(1) Risk Assessment Models

- The terminology in the Food Exposure Modules

of our current Risk assessment Models from DEEM

- FCI D, LIFELINE, and CARES will need to be updated to reflect new terminology and the new Crop Group terminology.

(2) EPA Residue Chemistry Test Guidelines (OPPTS 860.1000, Background)

, Table 1 Raw Agricultural and Processed Commodities and Feedstuffs Derive d from Crops and EPA Residue Chemistry Test Guidelines (OPPTS 860.1000, Background), EPA Residue Chemistry Test Guidelines (OPPTS 860.1500, Crop Field Trials), Table 5 Suggested Distribution of Field Trials by Region for Crops Requiring > 3 trials and Tabl e 6 Regional Distribution of Crop Production.

Any differences between the EPA and NAFTA Crop Production Regions after the NAFTA Regions are updated will be addressed by the ICCGR Workgroup or by the EPA HED ChemSAC with attendance by Canada, PMRA and Me xico. The EPA Residue Chemistry Test Guidelines (OPPTS 860.1500, Crop Field Trials) Table 5 Suggested Distribution of Field Trials by Region for Crops Requiring > 3 trials and Table 6 Regional Distribution of Crop Production will be updated to reflect mor e recent crop production information. There is currently no conflict with Canada.

(3) Health Effects Division Standard Operating Procedures: HED SOP 99.3

- – “Translation of Monitoring Data” issued March 26, 1999. This policy pr ovides guidance on translating pesticide monitoring data from one commodity to other similar commodities. Most of the monitoring data is from the USDA Pesticide Data Program (PDP) or the Food and Drug Administration (FDA). The policy is based on the crop groupings in the 40 CFR 180.41.

There are no entries for any of the tree nuts for translating pesticide monitoring data from one commodity to other similar commodities. The policy does not have to be updated at this time, since it will be still be appl icable to the whole crop group.

(4) HED SOP 99.6

- “Classification of Food Forms with Respect to Level of Blending” issued August 20, 1999. This SOP provides rationale and guidance to HED on revised criteria for inputting residue values and pesticide usage information into acute dietary exposure and risk assessments based on commodities. These revisions permit the Agency to more fully utilize data generated by the USDA Pesticide Data Program.

Some of the Tree Nut Crop Group me mbers are included in the HED SOP 99.6. See Table 39 below. Members of Crop Group 14 are considered partially blended (PB) commodities, since they have a small scale mixing or co

- mingling of many small to

medium sized items or units occurs. The tree nut s are all partially blended except for the

ones that have oil such as walnut oil which is blended. The tree nuts can be can be134

uncooked, cooked, baked, boiled, pasteurized, or frozen. Other members not in the original SOP will need to be added to the HED SOP 99.6

TABLE 39. Classification of Food Forms with Respect to Level of Blending for the Tree Fruit Crop Group. (HED SOP 99.6, April 20, 1999).

COMMODITY FOOD FORM CLASSIFICATION

Almond 11

- Uncooked PB

– Partially blended

Almond 12

– Cooked: N FS PB

– Partially blended

Almond 13

- Baked PB

– Partially blended

Almond 14

– Boiled PB

– Partially blended

Almond 18

- Dried PB

– Partially blended

Almond 41

– Frozen: NFS PB

– Partially blended

Brazil nut 11

- Uncooked PB

– Partially blended

B razil nut 13

- Baked PB

– Partially blended

Brazil nut 14

– Boiled PB

– Partially blended

Brazil nut 16

- Pasteurized PB

– Partially blended

Cashew 11

- Uncooked PB

– Partially blended

Cashew 13

- Baked PB

– Partially blended

Cashew 14

– Boiled PB

– P artially blended

Chestnut 12

– Cooked: NFS PB

– Partially blended

Chestnut 13

- Baked PB

– Partially blended Ginkgo

- PB

– Partially blended Hickory nut 11

- Uncooked PB

– Partially blended

Pecan 11

- Uncooked PB

– Partially blended

Pecan 13

- Baked PB

– Partially blended

Pecan 14

– Boiled PB

– Partially blended

Walnut 11

- Uncooked PB

– Partially blended

Walnut 12

– Cooked: NFS PB

– Partially blended

Walnut 13

- Baked PB

– Partially blended
Walnut, oil Walnut oil B

– Blended

(5) HED SOP 2000 .1

– “ Guidance for Translation of Field Trial Data from Representative Commodities in the Crop Group Regulation to Other Commodities in Each Crop Group/Subgroup” issued September 12, 2000.

There is guidance in the SOP for the current Tree nut Crop Group, but not for the additional proposed commodities, so the current Crop group 12 will be listed below followed by a listing of the proposed Tree nut group below:

Current Crop Group 14: Tree Nuts

Representative Commodities: Almond a nd Pecan135

CROP GROUP COMMODITY REPRESENTATIVE COMMODITY

Almond Almond

Beechnut Almond

Brazil nut Pecan

Butternut Pecan

Cashew Pecan

Chestnut Almond Chinquapin Almond Filbert (Hazelnut), Pecan Hickory nut Pecan

Macadamia nut Pecan

Pecan Pecan

Wa lnut, black and English Pecan

Proposed Crop Group 14

- 10: Tree Nut

Representative Commodities: Almond and Pecan

CROP GROUP COMMODITY REPRESENTATIVE COMMODITY

African tree nut Pecan

Almond Almond

Beechnut Almond

Brazil nut Pecan Brazilian pine A lmond Bunya Almond

Bur oak Pecan

Butternut Pecan Cajou Pecan

Candlenut Almond

Cashew Pecan

Castanha

- do

- maranhao Pecan

Chestnut Almond Chinquapin Almond

Coconut Pecan Coquito nut Pecan

Dika nut Pecan

Guiana chestnut Pecan Ginkgo Almond

Hazeln ut Pecan

Heartnut Pecan Hickory nut Pecan Japanese horse

- chestnut Pecan136

CROP GROUP COMMODITY REPRESENTATIVE COMMODITY

Macadamia nut Pecan Mongongo nut Pecan Monkey

- pot Pecan Monkey puzzle Almond

Okari nut Almond

Pachira nut Pecan Peach palm nut Almond

Pecan Pecan Pequi Almond

Pili nut Alm ond

Pine nut Almond

Pistachio Almond Sapucaia nut Pecan Tropical almond Almond
Walnut, black Pecan Walnut, English Pecan

Yellowhorn Almond

(6) HED Dry Matter Database will be updated to add Table 40 below :

Table 40. Health Effects Division D ry Matter and Seeding Rate Database. Tree Nut Crop Group. Prepared by Dr’s. NG and B. A. Schneider. June 2009.

Commodity % Dry Matter Acorn, flour 93.9
Acorn, raw 50.0

African nut tree 95.8

Almond 94.3, 95.7, 96.0
Almond, flour 96.8
Almond, hull s 90.0

Brazil nut 96.7, 97.0

Chestnut 49.9, 51.3

Coconut 49.1, 49.9, 53.1 Coconut, copra 91.0
Coconut, dried 96.8
Coconut, oil 0.00

Dika nut 87.2 Ginkgo nut 45.9

Hazelnut 94.6, 94.8, 95.0 Hickory nut 97.1137

Commodity % Dry Matter

Macadamia nut 97.1, 98.4 Monkey pot 60 .0 Peach palm nut 18.0
Pecan, dried 95.0, 95.2, 96.5, 96.8
Pecan, flour 89.3

Pili nut 91.1, 97.1

Pine nut 94.0.

Pistachio 94.1, 96.0 Almond, tropical 94.0, 97.3
Walnut, Black 97.3 Walnut, English 95.6, 96.0

COMMODITY DEFINITIONS [(40 CFR § 180 .1(g)]:

There are no commodity definitions for the tree nuts in 40 CFR ' 180.1(g) and none are proposed in the amendment to the crop group. :

TOLERANCE EXPRESSION GUIDANCE :

Until the Federal Register Notice is issued revising the Crop Group Regula tion to

establish the amended Tree Nut Crop Group 14 the commodities approved for the crop group will have to be listed as separate commodities at the same tolerance level. When ChemSAC approves the Tree Nut crop Group 14 , the Risk Integration, Minor Use, and Emergency Response Branch (RIMUERB) of the Registration Division can immediately implement the amended Crop Group with new tolerance expressions located in the

Section F submissions. The three tolerance expression examples will provide an expedited w ay to establish tolerances in or on Tree nut group c ommodities , especially for new reduced risk pesticides, without requiring additional residue data for all the crops noted. This will create a practice in the United States which is already formalized in Canada and promote international harmonization. The tolerance expression examples for guidance purposes for use by RIMUERB and HED reviewers are listed below:

Example 1 . What is the tolerance expression for the amended Tree Nut Crop Group 14?

Answer to Example 1 :

“ The tolerance expression for the amended Tree Nut Crop Group 14 will be “Nut,

t ree, group 14

- 10.”138

Example 2

. How will the Crop group appear in the Federal Register for the proposed crop group regulation [40CFR 180.41(c)]? This example is for the Field and External Affairs Division (FEAD) and Registration Division (RD) use in preparing the new Federal Register Regulation. The example follows the same format as the current Crop Grouping Regulation Federal Register Notice (FR 60, No.95, 5/17/95, 26626

- 26643

Answer to Example 2 :

“Crop Group 14

- 10: Tree Nut Crop Group”.

(i) Representative commodities. Almond and pecan. (ii) Table. The following Table 1 lists all the commodities listed in Crop Group 14 and identifies the related crop subgrou ps and includes cultivars, varieties and/or hybrids of these commodities.

The scientific names of the t hirty

- nine commodities were also updated and are listed

below. “HED Corrected Proposed Tree Nut Crop Group 14

- 10”.

Commodities
African nut tree, Ri cinodendron heudelotii (Baill.) Heckel
Almond, Prunus dulcis (Mill.) D.A. Webb
Beechnut, Fagus grandifolia Ehrh., F. sylvatica L., F. sylvatica L. subsp. s ylvatica
Brazil nut, Bertholletia excelsa Humb. & Bonpl. Brazilian pine, Araucaria angustifolia (Bertol.) Kuntze Bunya, Araucaria bidwillii Hook.

Bur Oak

, Quercus macrocarpa Michx., Quercus spp

. Butternut, Juglans cinerea L. Cajou, Anacardium giganteum Hance ex Engl.
Candlenut, Aleurites moluccanus (L.) Willd.
Cashew, Anacardium occidentale L.
Chestnut, Castanea crenata Siebold & Zucc., C. dentata (Marshall) Borkh., C. mollissima Blume, C. sativa Mill. Chinquapin, Castanea pumila (L.) Mill., Castanea ozarkensis Ashe
Coconut, Cocos nucifera L. Coquito nut, Jubaea chilensis (Molina) Baill. Dika nut, Irvingia gabonensis (Aubry

- Lecomte ex O’Rorke) Baill. Ginkgo, Ginkgo biloba L.
Guiana chestnut, Pachira aquatica Aubl. Hazelnut (Filbert), Corylus americana Marshall, C. avellana L., C. californica (A. DC.) Rose, C. chinensis Franch., Corylus spp. Heartnut, Juglans ailantifolia C arrière var. cordiformis (Makino) Rehder, Juglans ailantifolia Carrière Hickory nut, Carya cathayensis Sarg., C. glabra (Mill.) Sweet, C.139

Commodities

laciniosa (F. Michx.) W. P. C. Barton, C. myristiciformis (F. Michx.) Elliott, .C. ovata (Mill.) K. Koch, C. tomentosa (Lam.) Nutt. Japanese horse

- chestnut, Aesculus turbinata Blume
Macadamia nut, Macadamia integrifolia Maiden & Betche,

Macadamia tetraphylla L.A.S. Johnson Mongongo nut

, Schinziophyton rautanenii (Schinz) Radcl.

- Sm

. Monkey

- pot, Lecythis pisonis Cambess. Monkey puzzle nut, Araucaria araucana (Molina) K. Koch Okari nut, Terminalia kaernbachii Warb.
Pachira nut, Pachira insignis (Sw.) Savigny Peach palm nut, Bactris gasipaes Kunth var. gasipaes
Pecan, Carya illin oinensis (Wangenh.) K.Koch Pequi, Caryocar brasiliense Cambess., C. villosum (Aubl.) Pers, Caryocar nuciferum L.
Pili nut, Canarium ovatum Engl., Canarium vulgare Leenh.

Canarium indicum L.
Pine nut, Pinus edulis Engelm., P. koraiensis Siebold & Zucc., P.

sibirica Du Tour, P. pumila (Pall.) Regel, . P

. gerardiana Wall. ex D.
Don, P. monophylla Torr. & Frém., P. quadrifolia Parl. ex Sudw. . P

. pinea L.
Pistachio, Pistacia vera L. Sapucaia nut, Lecythis zabucaja Aubl. Tropical almond, Terminalia catappa L.
Walnut, black, Juglans hindsii Jeps. ex R. E. Sm.

, J. mi crocarpa Berland.,

J. nigra L. Walnut, English, Juglans regia L.
Yellowhorn, Xanthoceras sorbifolium Bunge Cultivars, varieties, and hybrids of these commodities

Example 3 : How will I exp ress the tolerances on an interim basis until the Federal Register Notice is final for the Tree Nut group 14

– 10 or 14

– 11 depending when the FR Notice is published, for example at a tolerance level of 1.5 ppm? This example will be useful for the Regist ration Division (RD) and Health Effects Division (HED) to prepare tolerance tables. All the new proposed commodities will have to be listed separately from the crop group tolerance and at the same level as the crop group.

Answer to Example 3 : Commodity P arts per million (ppm)

African nut tree 1.5

Almond 1.5

Beechnut 1.5140

Commodity P arts per million (ppm) Bunya 1.5

Butternut 1.5 Cajou. 1.5

Candlenut 1.5

Cashew 1.5

Chestnut 1.5 Chinquapin 1.5

Coconut 1.5

Dika nut 1.5 Ginkgo 1.5

Guiana chestnut 1.5

Hazelnut 1.5

Heartnut 1.5

J apanese horse

- chestnut 1.5 Monkey

- pot 1.5
Nut, Brazil 1.5
Nut, c oquito 1.5 Nut, hickory 1.5
Nut, m acadamia 1.5
Nut, m ongongo 1.5
Nut, m onkey puzzle 1.5
Nut, okari 1.5 Nut, p achira 1.5 Nut, peach palm 1.5 Nut, pine 1.5
Nut, s apucaia 1.5
Oak, b u r 1.5

Pecan 1.5 Pequi L. 1.5
Pine, Brazilian 1.5

Pistachio 1.5 Tropical almond 1.5
Walnut, black 1.5 Walnut, English 1.5

Yellowhorn 1.5 Cultivars, varieties and/or hybrids of those above commodities141

EPA FOOD AND FEED COMMODITY VOCABULAR Y FOR THE TREE NUT

CROP GROUP:

The following terms for the tree nut commodities will be incorporated to the EPA Food and Feed Commodity Database ( http://www.epa.govopp/foodfeed ). Table 41

below is identica l to the current Food and Feed Commodity Vocabulary format. A search of the lookup terms will link to the EPA preferred tolerance/commodity term, and the Base crop/animal term is the specific crop animal terms associated with the preferred

term. Until th e Federal Register Notice for the Crop Group is final, the Crop Group designation on each term will be listed as no crop group and given the crop group 99 for the present.

Table 41. EPA FOOD AND FEED COMMODITY VOCABULARY

SEARCH OR LOOKUP

TERM FOR TRE E NUT

COMMODITIES PREFERRED

TOLERANCE TERM BASE

CROP/ANIMAL

TERM

African Nut

- Tree; African oil

nut

- tree; African wood

- oil nut

tree; afrikanisches Mahagon bois jasanga; erimado; essang; essessang; ezang; menguela; muawa; munguella; okwe African Nut

- Tree Af rican Nut

- Tree

Almond; Amandier; Almendro; bitter almond; almond, bitter; sweet almond; Almond, sweet; bian tao; amandier commun; Mandel; Mandelbaum; Bittermandelbaum; amendo; amendoeira; amêndoa

- amarga; amêndoa

- doce Almond Almond

Almond, tropical; Tropi cal almond; Badamier; Kamani; Olive bark tree; Indian almond; Malabar

almond; Almendro; indischer Mandelbaum; Katappenbaum;

amendoeira

- da

- Índia; amendoeira;
chapéu

- de

- sol; almendro de la India; sea

- almond; tropical

almond; badam, badamier Almond, tropical Almond, tropical

Beechnut; Beech nut; American beech; hêtre américain; Beech, American; European beech; Beech, European; common beech; Beech, Beechnut Beechnut142

SEARCH OR LOOKUP

TERM FOR TRE E NUT

COMMODITIES PREFERRED

TOLERANCE TERM BASE

CROP/ANIMAL

TERM

common Betelnut; Betel palm; Palm, betel; Pan; Nioi

- Pekela; Indian

- nut; Areca; Areca

- nut; Arec a

- nut palm; Catechu; Pinang; A reca palm; betelnut palm; pinang; aréquier; noix d'arec; Betelpalme; supari; arequeira; areca
, bonga Betelnut Betelnut

Brazilian pine; Pine, Brazilian;

Brazilian

- pine; candelabra

- tree;

Parana

- pine; pinheiro

- do

- Brasil; pinheir o

- do

- Paraná Pine, Brazilian Pine, Brazilian

Buny: bunya

- bunya; bunya

- pine; bunya

- bunya tree; false monkey puzzle tree Bunya Bunya

Butternut; white walnut; noyer cendré; Butternußbaum; nogal

ceniciento Butternut Butternut

Cajou; anacardier géant; Caja ac u Cajou Cajou

Candlenut; candleberry; candlenut

tree; Indian

- walnut; lumbangtree; varnishtree; noyer de bancoul; noyer des Moluques; Lichtnußbaum; noz

- da

- Índia
nogueira

- brasileira; nogueira

- da

Índia; nogueira

- de

iguape;calumbán; camirio; lumbán

, kukui Can dlenut Candlenut

Cashew; Cajuil; Cashew apple; Cashew nut; anacardier; Acajubaum; Kaschubaum; Nierenbaum; cajú; cajueiro; anacardo; marañón Cashew Cashew

Castanha

- do

- maranh ã o; French peanut; Guinea peanut; money tree; lucky tree; maní francés;

árbol de d inero; árbol de la suerte;

castanha

- da

- praia; cacau

- do

maranhão; mamorana amendoim

de

- árvore; cacau selvage Castanha

- do

- maranh ã o Castanha

- do

maranh ã o

Chestnut; American chestnut; Chestnut, American; châtaignier d'Amérique; amerikanische Kastanie; Chinese chestnut; Chestnut, Chinese; C hinese hairy chestnut; châtaignier de Chine; li; chinesische Kastanie; shinaguri; Chestnut Chestnut143

SEARCH OR LOOKUP

TERM FOR TRE E NUT

COMMODITIES PREFERRED

TOLERANCE TERM BASE

CROP/ANIMAL

TERM castaño chino; European chestnut; Spanish chestnut; sweet chestnut; châtaignier commun; Eßkastanie;
Marone; castanheiro

- comum; astaño común; reg oldo; Japanese chestnut; ri ben li; châtaignier du Japon; japanische Kastanie; kuri

, castanheiro

- do

- Japão; castaño del Japón
Guiana chestnut; M oney

- tree;
Guiana

- chestnut; Malabar

chestnut; provision

- tree; saba nut; châtaigner sauvage; ca staño de

agua; castaño de la Guayana; Guyana chestnut; Provision tree Chestnut, Guiana Chestnut, Guianat

Chinquapin; Allegheny chinkapin; chinkapin; dwarf chestnut; golden chinquapin; bush chestnut Chinquapin Chinquapin

Coconut; Coconut oil; Coco palm;

c oconut palm; water coconut; copra; khopra; nariyal; cocotier; Kokospalme; khopar; coqueiro;

coco

- da

- bahia; coco

- da

- praia; coqueiro

- da

- bahia; coqueiro

- da

praia; cocotero; cokernut Coconut Coconut

Ginkgo; Ginkgo nut; Maidenhair tree; Icho; Ya

- chiao

- tzu; gi nkgo nut; Ginnan; Pai

- kua; ginkgo biloba; noyer du Japon; Ginkgobaum; nogueira

- do

- Japão Ginkgo Ginkgo

Hazelnut; Cobnut; Filbert; European filbert; Filbert, European; European hazel; Avellana; cobnut; giant filbert; hazel, avelinier; coudrier; noisetier;

n oisetier franc; noisetier tubuleux; gewöhnliche Hasel; Haselnuß; Haselstrauch; Lambertnuß; Lambertshasel; aveleira; avellano; avellano de Lambert; American hazelnut; Hazelnut, American; American filbert; California hazelnut; Western hazel; Beaked filbert; Beaked hazelnut Hazelnut Hazelnut

Heartnut; Hime

- gurumi; Japanese walnut; Siebold walnut; noyer du Japon; onogurumi; herzfrüchtige Heartnut Heartnut144

SEARCH OR LOOKUP

TERM FOR TRE E NUT

COMMODITIES PREFERRED

TOLERANCE TERM BASE

CROP/ANIMAL

TERM Walnuß; himegurumi Japanese horse

- chestnut; Horse

chestnut, Japanese Horse

- chestnut, Japanese Horse

- chest nut, Japanese Monkey

- pot; castanha

- de

sapucaia; sapucaia Monkey

- pot Monkey

- pot

Brazil nut: Nut, Brazil; Brazilnut;
creamnut; Paranut; Brazilnut

- tree; noyer de Para; noyer du Brésil; Paranußbaum; castanha

- do

- Brasil;

castanha

- do

- Pará; castaña del Brasil; c astaño de Pará; nuez del

Brasil Nut, Brazil Nut, Brazil

Coquito nut; coquito palm, nut, coquito; Chilean cocopalm; Chilean wine palm; honey palm; little cokernut; syrup palm; cocotier du Chili; Honigpalme; coco de Chile; palmera coquito Nut, coquito Coqu ito

Dika nut Nut, dika; Dika; wild

mango; African mango; bush mango; etima; odika; árbol chocolate; African wild mango; chocolatier; dika du Gabon; dikabread tree; Dikanuß; dikanut tree; irvingia; manguier sauvage; ogbono; rainy season bush mango;

sweet bush mango

. Nut, Dika Dika

Hickory nut; Nut, hickory; Pignut hickory; pignut; red hickory; redheart hickory; small

- fruited hickory; sweet pignut; broom hickory; Shagbark hickory; scalybark hickory; shellbark hickory; upland hickory; carya blanc; caryer ovale; noyer blanc; noyer tender; Schuppenrindenhickory; caria blanca; Shellbark hickory; big shellbark; kingnut; shagbark hickory; Mockernut hickory; big

bud hickory; mockernut; squarenut; white

- heart hickory; Nutmeg hickory; nogal Nut, hickory Nut, hicko ry

Macadamia nut; Nut, macadamia; Queenslandnut; Bushnut; Australian nut; Bopplenut; Bauplenut; smooth

- shell Nut, macadamia Nut, macadamia145

SEARCH OR LOOKUP

TERM FOR TRE E NUT

COMMODITIES PREFERRED

TOLERANCE TERM BASE

CROP/ANIMAL

TERM
Queensland

- nut; ao zhou jian guo; macadamier; noix du Queensland; glattschalige Macadamia; Macadamianuß; macadamia; nogueira

- do

- havaí; Nuez

- de

mac adamia; rough

- shelled macadamia; macadamia

- nut; Queensland

- nut; rough

- shell Queensland

- nut; si ye ao zhou jian guo; macadamier; Macadamianuß; rauhschalige Macadamia; nogal de Australia; nuez australiana
Mongongo, mongongo
, fr uit ; mongongo nut ; Nut,

mongongo; manketti nut ;

m anketti ; mongongo; mangetti ;

mugongo ; mungomo ; omunkhete Nut, m ongongo Mongongo

Monkey puzzle nut; puzzle, monkey; Chilean pine; monkey puzzle tree; araucária

- do

- Chile Nut, monkey puzzle Nut, monkey puzzle

Okari nut; okari

- nut Nut, Okari Nut, Okari Pachira Nut; Nut, pachira; w ild

chestnut Nut, pachira Nut, pachira

Peach palm nut; Nut, peach palm; Palm, peach; pejibaye; palmier pêche; parépou; Pfirsichpalme; pupunha; gachipaes; masato; chonta; pijuayo; pe

jivalle, piva, cachipay, bobi, cachipaes, chontaduro; popunha Nut, peach palm Peach palm

Pili nut; pilinut; Pilinußbaum; nuez pili Nut, pili Nut, pili

Pine nut; Nut, pine; Siberian pine; Korean pine; Chinese pinenut; pin de Corée; Korea

- Kiefer; channamu; Italian stone pine; parasol pine; pignolia

- nut pine; stone pine; umbrella pine; pin parasol; pin pignon; Pinie; Schirmkeifer; Chilgoza Pine; chilghoza pine; Gerard’s pine; Gerard’s Kiefer; Single

- leaf pinyon; one

- leaf pinyon; einnadlige Weymouthskiefer;

p iñón Nut, pine Nut, Pine146

SEARCH OR LOOKUP

TERM FOR TRE E NUT

COMMODITIES PREFERRED

TOLERANCE TERM BASE

CROP/ANIMAL

TERM Sapucaia nut; Nut, Sapucaia; monkeynut; paradise

- nut; sapucaia

- nut; canari macaque; Paradiesnuß; nuez del paraíso Nut, Sapucaia Nut, Sapucaia

Bur Oak; Oak, bur; Acorn; Burr oak; Mossy cup oak Oak, bur Oak, bur

Pecan; Black hicko ry; Pecana; Nogal americano; Nogal pecanero; mei guo shan he tao; pacanier; Hickorynußbaum; Pekannußbaum; nogueira

- peca; nogueira

-

japonêsa; nogueira

- pecã; noz

-

japonêsa; noz

pecã; pecã; pecana; pecanero Pecan Pecan

Pequi; pequia; almendra de Brasil;

Souar i; sawari nut Pequi Pequi

Pistachio; pistache nut; pistachio nut; Nut, pistachio; pistacia nut; green almond; pistachier cultivé; Pistazie; Pistazienbaum; pisutachio; alfóncigo; pistachero Pistachio Pistachio

Walnut, black; Eastern black walnut; noyer no ir d'Amérique; schwarze Walnuß; nogueira

- preta; nogal Americano; nogal negro; Walnut, Northern California black; Hinds’ black walnut; Hand’s black
walnut; Hinds' black walnut; Hinds' walnut; northern California black walnut; northern California walnut; kal ifornische Walnuß;

Nut

- o

- Nogal; Walnut, Texas black Walnut, black Walnut, black

English walnut; Walnut, English; California walnut; Persian walnut; Madeira nut; Nogal, Carpathian walnut; Nogal comum; hu

- tao;

noyer commun
, echte Walnuß; nogueira

- comum; nog ueira

européia; nogal común; nogal

europeo; nogal ingles Walnut, English Walnut, English

Yellowhorn; Yellow

- horn; Popcorn Shrub; Chinese flowering chestnut Yellowhorn Yellowhorn

REFERENCES FOR TREE NUT GROUP:147

ADASKAVEG: Adaskaveg, J.E., J.H. Connel l, B.L. Teviotdale. 1998. Fungal Diseases of Almond Blossoms, Leaves, and Fruit. Divi. of Agric. and Nat. Res., University of California.

AGMRC: Agricultural Marketing Research Center. http://www.agm rc.org/agmrc/default.html

AGROFORESTRY: AgroForestryTree Database. http://www.worldagroforestrycentre.org/Sea/Products/AFDbases/AF/asp/SpeciesInfo.asp?SpID=1

8100

AHMED: Ahmed, A. and K. Johnson. 2000. Horticultural Development of Australian Native Edibl e Plants. Australian J. Botany 48: 417

- 426.

AKINNIFESI: Akinnifesi, F

. , R. Leakey, O. Ajayi. 2008. Indigenous fruit trees in the tropics: domestication, utilization and commercialization. 438 pp. CABI Publishing.

AKUBOR: Akubor, P.I. 1996. The suitabili ty of African bush mango juice for wine production. Plant

Foods Hum. Nutr. 49:213

- 219.

ALMOND: Almond Almanac. Almond Board of California. 2000.

AUSTRALIA PLANTS: Our Wild Foods to the World

. http://farrer.riv.csu.edu.au/ASGAP/APOL25/mar02

- 5.html

AUSTRALIAN: Australian Native Foods. CSIRO Land and Water o nline information.

http://www.clw.csiro.au/nativefoods/crops/ index.html

BAILEY 1976: Bailey, L.H. and E.Z. Bailey. 1976. Hortus Third, A Concise Dictionary of Plants Cultivated in the United States and Canada. MacMillian Publishing Company, New York, NY. 1290 pp.

BAUGHER: Baugher, T. and S. Singha. 2003. Concis e Encyclopedia of Temperate Tree Fruit. The Hawthorn Press, Inc. Binghamton, NY.

BAYER CODES: Bayer Codes for Pests, http://cipm.ncsu.edu/names/index.cfm

BEAUDY: Beaudy, R. and D. Dilley. 2004. Pome and Stone Fruit Storage and Disorder Control. Michigan State University Department of Horticulture. Pp 186

- 190.

BIODIVERSITY: Biodiversity International. 2010. International Plant Genetic Institute ( http://www.biodiversityinternational.org ).

BITTENBENDER: Bittenbender, H. C. and H. H. Hirae. 1990. Commo n problems of macadamia nut it

Hawaii. Research Extension Series 112

- 05. Cooperative Extension Service. College of Tropical Agriculture and Human Resources. University of Hawaii at Manoa. Honolulu.

BLUEPLANTBIOMES: Blue Planet Biomes Website. http://www.blueplanetbiomes.org/

BOTANICAL: http://www.botanical.com/botanical/mgmh/mgmh.html

BOYD: Boyd, J.W. 1991. Fruit tree weed control. Univ. of Ark. Coop. Ext. Ser. Fact Sheet A2079. 4pp.Carroll, B., M.W. Smith, and B.D. McCraw. 1998. Establishing a pecan orchard. Oklahoma State Univ. Coop. Ext. Ser. F

- 6247. 4 pp

BRISON: Brison, F. 1986. Pecan culture. The Texas Pecan Grower Association, Capit al Printing, Austin,

Texas.148

BROEMBSEN: Broembsen, S.V. 2001. Pecan diseases: prevention and control. Oklahoma State University Cooperative Extension Service, Stillwater, Oklahoma. F

- 7642. ( http://pearl.agcomm.okstate.edu/plantdiseases/f

- 7642.html ).

BYFORD: Byford, R. 2005. Growth and development of Pe c an Nuts. New Mexico State university Cooperative Extension Service. Guide H

- 618.

CABALLERO: Caballero, B. 2003. Encylopedia of Foo d Science and Nutrition. Second Ed. Nuts. R.A. Stephenson. Pp 4205

- 4212. Academic Press, NY.

CALUNIV 1987: Integrated Pest Management for Walnuts, 2nd edition, 1987. University of California, Statewide Integrated Pest Management Project. Division of Agri culture and Natural Resources. Pub. 3270.

CALUNIV 2000: University of California Pest Management Guidelines: Walnuts, 2000. http://axp.ipm.ucdavis.edu/PMG/selectnewpest.walnuts.html

CAVENDER: Cavender, C. 1973. Utilization and marketing of shells. In Black walnut as a crop. Proceedings, Black Walnut Symposium, August 14

- 15, 1973, Carbondale, IL. p. 77

- 78. USDA Forest Service, General Technical Report NC

- 4. North Central Forest Exp eriment Station, St. Paul, MN.

CHAPMAN: Chapman, P.J. and G.A. Catlin. 1976. Growth Stages in Fruit Trees

- From Dormant to Fruit Set. NY State Agricultural Experiment Station. Geneva, NY Food and Life Sciences Bulletin No.

58.

CHILDERS 1983: Childers, N .F. 1983. Modern Fruit Science. 9th Edition. N.F. Childers Publisher, Gainesville, FL. 583 pp.

CLEMSON: Clemson Extension Webpage on Landscape, Garden, & Indoor Plants. http://hgic.clemson.edu/

CODEX: Codex Alimentarius. 1993. Pesticide Residues in Food. Section 2. Codex Classification of Foods and Animal Feeds. FAO/WHO, Rome, Italy. Vol. 2: 218 pp.

CONIFERS: The Gymnosperm Database: http://www.conifers.org

CRANE 1988: Crane, J.C. and J. Marranto. 1988 . Pistachio Production. University of California, Agiculture and Natural Resources. Publ. # 2279.

CRANE 2006: Crane, J.C. 2006. Pejibaya (Peach Palm) Growing in the Florida Home Landscape. Univ FL IFAS Cooperative Extension Service Publication HS 1072.

CRFG: California Rare Fruit Growers webpage. http://www.crfg.org/index.html

CROP PROFILES: USDA Crop Profiles. http://cipm.ncsu.edu/CropP rofiles/cropprofiles.cfm

CSIRO: Australian Native Foods

. http://www.cse.csiro.au/research/nativefoods/index.htm

DALEYS: Daleys Fruit Tree Nursery Webpage. http://www.daleysfruit.com.au/?PHPSESSID=ccce8095ca4a2396bf7c85346e9c7fa0

DAVE’S GARDEN: Dave’s Garden, Online Information, ht tp://davesgarden.com/pf/go/1189/index.html

DEEPROOT: Deep Root Plant Database Online : http://www.deeproot.co.uk/index.html149

DELAPLANE: Delaplane, K.S. and D.F. Mayer. 2000. Crop Pollination by Bees. Wallingford, Oxon, UK, New York.

DESERT TROPICALS: Desert Tropicals gardening website : http://www.desert

- tropicals.com

DUGGAN 2006: Duggan, P. 2006. Personal Communication. Stone fruits MRLs. 29 Nov, 06.

DUKE: Duke, James A. 1989. CRC Handbook of Nuts. CRC Press, Inc. 343 pp.

ELLIS: Ellis, H. C. and R. Hudson. 2000. Pecan Pest Management Handbook. The University of Georgia College of Agricultural and Environmental Sciences Cooperative Extension Servic e ( http://www.gaipm.org/pecan/scout/ ).

ELVING: Elving, P. 1987. Sunset Fresh Produce. A to Z. Lane Publishing Co., Menlo Park, CA. 128 pp.

ENVIRONMENTAL: Ethnobotany and Cultural Resources of the Washington State Department of Transportation. Washington State Department of Transportation Webpage. http://www.wsdot.wa.gov/environment/culres/ethbot/Ethnobotany.htm

EREZ: Erez, A. 2000. Temperate Fruit Crops in Warm Climate s. Kluwer Acadamic Publ. Norwell, MA. 463 pp.

EWING: Ewing, N.L. 1992. Processing Procedures for Various Raw Agricultural Commodities. Letter

from National Food Processors Association, Dublin, CA to MS Debra Edwards, US EPA OPP Chemist Branch. Apple Proc essing Protocol. May 21.

EYRE: Ere, F. H., ed. 1980. Forest cover types of the United States and Canada. Society of American Foresters, Washington, DC. 148 p

FACCIOLA 1990 : Facciola, S. 1990. Cornucopia: A Source Book of Edible Plants. Kampong Publ. Vist a, CA. 677 pp.

FACCIOLA 1998 : Facciola, S. 1998. Cornucopia II: A Source Book of Edible Plants. Second Ed., Kampong Publ. Vista, CA. 677 pp.

FARMERS: Farmers Bookshelf, An Information System of Crops in Hawaii. 2002. College of Tropical Agriculture an d Human Resources, University of Hawaii

- Manoa, Department of Horticulture. http://agrss.sherman.hawaii.edu/bookshelf/macadami/macadami.htm

FAIRCHILD: Fairchild, L. 2006. The Packer. The Produce Availability and Merchandising Guide

– 2006.

Vol. 93

- no. 53. Vance Publishing Corp. Lenexa, KS. 330pp.

FAO 200 5: FAO Statistics 2005. http://faostat.fao.org/faostat/form?collection=Production.Crops.Primary&Domain=Production&se rvlet=1&hasbulk=&version=ext&language=EN

FAO STATISTICS: FAO Statistics 2006. http://faostat.fao.org/faostat/form?collection=Production.Crops

.

FLORA OF MOZAMBIQUE: Flora of Mozambique Website. http://mozambiqueflora.com/index.php

FLORIDATA

, http://www.floridata.com/index.cfm

FAODOC, Food and Agriculture Organization of the United Nations Corporate Document Repository. http://www.fa o.org/documents/150

FAOSTAT, Food and Agriculture Organization of the United Nations Statistics. http://faostat.fao.org/site/567/DesktopDefault.aspx?PageID=567

FARMERS: Farmer s Bookshelf, An Information System of Crops in Hawaii. 2002. College of Tropical

Agriculture and Human Resources, University of Hawaii

- Manoa, Department of Horticulture. http://agrss.sherman.hawaii.edu/bookshelf/macadami/macadami.htm

FAS: USDA Foreign Agr iculture Service. http://www.fas.usda.gov/

FASONLINE. FASonline MRL Database. Horticultural & Tropical Products Division , USDA Foreign Agri cultural Service

, h ttp://www.mrldatabase.com/result.cfm

FAUCON: Faucon, P. Desert Tropicals Homepage. http://www.desert

- tropicals.com/Plants/sci_names.html

FELLAND: Felland, C. 1999. Pennsylvania Tree Fruit Production Guide. 1998

- 1999. Penn State College of Agricultural Sciences. 275 pp.

FLAVOR AND FORTUNE: Online information from Flavor and Fortune magazine, Institute for the Advancement of the Science and Art of Chinese Cuisine, http://www.flavorandfortune.com/index.html

FLORIDATA : Floridata Gardening Website : http://www.floridata.com/index.cfm

FULBRIGHT: Fulbright, D.W. 2003. A Guide t o Nut Tree Culture in North America. Northern Nut Griowers Association, Inc. (NNGA). 395 pp.

FULLER: Fuller, Andrew S. 1919. The Nut Culturist: A Treatise on the Propagation, Bearing, and

Cultivation of Nut

- Bearing Trees and Shrubs Adapted to the Climate of the United States With the

Scientific and Common Names of the Fruits Known in Commerce as Edible or Otherwise Useful Nuts. The Orange Judd Company, New York.

FUNK: Funk, David T. 1979. Black walnuts for nuts and timber. In Nut tree culture in North Ame rica. p p. 51

- 73. Northern Nut Growers Association, Hamden, CT.

GAST: Gast, K. 1991. Postharvest Management of Commercial Horticultural Crops. Storage Conditions Fruits and Vegetables. Kansas State University Cooperative Extension Service. MF

- 978.

GAUS: Gaus, A. 2007. Pollination of Fruit Trees. Colorado State University Extension Service.

Horticulture Bull. No. 7.002.

GEORGE: George, S. S., H. O’Day Maureen, and W. Reid. 1995. Pecan Pest Management: Insects and Diseases. University of Missouri Extension , MP711 ( http://muextension.missouri.edu/xplor/miscpubs/mp0711.htm ).

GEORGIAUNIV: University of Georgia Cooperative Extension Service. 2000. Pecan pest management handbook. (www.g aipm.org/pecan/scout/).

GOFF: Goff, W.D., J.R. McVay, and W.S. Gazaway. 1989. Pecan production in the southeast. The Alabama Cooperative Extension Service, Auburn University, Alabama.

GOLD 2004: Gold, M., M. Cernusca. 2004. Consumer Preference for Chestn uts. Eastern Black Walnut and Pecans. Horttechnol 14 (4): 583

- 589.

GOLD 2005: Gold, M., M. Cernusca, and L. Godsey. 2005. Update on Consumer Preference for Chestnuts. Horttechnol 15 (4): 5904

- 906.151

GOURMET: The Gourmet Food and Cooking Resource online i nformation.

http://www.gourmetsleuth.com/index.asp

GRIN: World Economic Plants in GRIN, Germplasm Resources Information Network, United States Department of Agriculture. http://www.ars

- grin.gov , Online information, http://www.ars

grin.gov/cgi

- bin/npgs/html/taxecon.pl

GROSS, K: Gross, K.C., C. Yi Wang, and M. Saltveitt. 2004. The Commerci al Storage of Fruits,

Vegetables, and Florist and Nursery Stokes. USDA Agricultural Handbook Number 66.

GUPTA: Gupta, O.P. and S.S. Kadam. 1995. Ber (Jujube). In Handbook of Fruit Science and Technology. D.K. Salunkhe and S.S. Kadam, editors. Marcel Dekker, Inc., New York, NY.

HALL 2003: Hall, M., Pyzner, J. and D. Pollet. 2003. Louisiana recommendations for the control of pecan insects in 2003 Insect Pest Management Guide. Louisiana Cooperative Extension Service. Pub.1838. 4 pp

HALL 2005: Hall, M. , R. Sanderlin, J. Pyzner, M. Grodner, and C. Graham. 2005. Crop Profile for Louisiana Pecans. Louisiana AgCenter, Louisiana State University, Baton Rouge, LA. http://www.ipmcenters. org/cropprofiles/docs/lapecans.html

HARDENBURG: Hardenburg, R. E., A. E. Watada, and C. Y. Wang. 1986. The Commercial Storage of

Fruits, Vegetables, and Florist and Nursery Stock. USDA, ARS, Agricultural Handbook 66. 136 pp. Washington, D. C. 20402.

HA WAII: Hawaii Agricultural Statistics Service. 2000. Macadamia nuts: loss by cause 1999

- 2000.

HAWKES: Hawkes, J. 1983. The Diversity of Crop Plants. Harvard University Press. London, England.

184 pp.

HAZEL: Hazel, W. 2000. HED ChemSAC Approval of Requ est for Residue Data Developed for Almonds to be Translatable to Pistachios for Establishing Toleracances. US Environmental Protection Agency. HED Chemistry Science Advisory Council. August 24. 4 pp.

HAZELNUT 1998a: Commodity Data Sheet, Hazelnuts; 515 0

- 97; Oregon State University Extension Service: Corvallis, OR , March 1998.

HAZELNUT 1998b: Hazelnut 1998 Pest Management Guide for the Willamette Valley; EM 8328; Oregon State University Extension Service: Corvallis, OR.

HAZELNUT 2007: Hazelnut Facts . http://www.ippi.com/dir_dat/info_hazelnut.html.

HENDRICKS: Hendricks, Lonnie, Roger Duncan, Paul Verdegaal, Karen Klonsky, Pete Livingston. 1998. University of California Cooperative Extension. Sample Costs to Establish an Almond Orchard and

Produce Alm onds, Northern San Joaquin Valley.

HENNEMAN: Henneman, A. 2004. Nuts for Nutrition. USDA University of Nebraska Coperative

Extension Service. ( http://www.lancaster.unl.edu/food/ftmar04.htm )

HERRERA 2002: Herrera, E. 2002. Storing pecans. College of Agric ulture and Home Economics, New Mexico State University, Las Cruces, New Mexico. H

- 620. ( http://cahe.nmsu.edu/pubs/_h/h

- 620.pdf ).

HERRERA 2004: Herrera, E. 2004. Selecting soil and site for a pecan or chard. College of Agriculture and Home Economics, New Mexico State University, Las Cruces, New Mexico. H

- 614. ( http://cahe.nmsu.edu/pubs/_h/h

- 614.pdf ).152

HOLISTICONLINE: Holisticonline.com, http://www.holistic

- online.com/Herbal

- Med/_Herbs/h73.htm

HOWITT: Howitt, Angus H. 1993. Common Tree Fruit Pests . Michigan State University Extension

Bulletin.

HUANG: Huang, S. and K. Huang. 2007. Increased U.S. Imports of Fresh Fruit and Vegetabl es. USDA

Economic Research Service. FTS

- 328

- 01.

HUI: Hui, Y.H. 2006. Handbook of Fruits and Fruit Processing. First Ed. Blackwell Publishing. Ames, IA,

697 pp.

HULL: Hull, L. A., D. G. Pfeiffer and D. J. Biddinger. 2002. Mid

- Atlantic Orchard Monitoring Guide.

NRAES, 152 Riley

- Robb Hall, Ithaca, NY

IFAS: University of Florida, Institute of Food and Agricultural Sciences (UF/IFAS). Online Publications. http://edis.ifas.ufl.edu/index.html

IPM 1985: Inte grated Pest Management for Almonds, 1985. University of California, Statewide Integrated Pest Management Project. Division of Agriculture and Natural Resources. Pub. 3308.

IPM 1987: Integrated Pest Management for Almonds (Second Ed.); University of Califo rnia Statewide Integrated Pest Management Project, Division of Agriculture and Natural Resources. 1987. Publication

3270.

ITNDFCF: ITNDFCF. 2010. International Nut and Dried Fruit Council Foundation. Brazil Nut, Cashew, Hazelnut, Pine Nut, Ptitachio, Wal nut. http://www.nutfruit.org/index.

IVES: Ives, F. 1997a. Unpublished Data on Crop Vernaculars for Mexico. OPP, US EPA, Washington, D.C. 3 pp.

JAIN: Jain, S.M. and P.M. Priyadarshan, Editors. 2009. Breeding Plantation Tree Crops. Temperate Species. S pringer Science. NY 290 pp.

JANICK: Janick, J. and R. Paull. 2008. The Encyclopedia of Fruits and Nuts. CABI. Cambridge, MA. 945

pp.

JERADO: Jerado, A. 2003. Import Share of U.S. Food Consumption Stable AT 11%. USDA FAU

- 79

- 01.

JOHNSON: Johnson, K. 1989 . Harvesting and Storing Commercial Fruits and Vegetables. University of Tennessee Agricultural Extension Service. PB 1243.

JOLLY: Jolly, D. et al. 1998. Specialty and Minor Crops Handbook. Second Ed. Small Farm center.

University of California Division of Agriculture and Natural Resources. 184 pp.

JONES 1991: Jones, R.K. and D.F. Ritchie.1991. Some common pecan diseases and their control in North Carolina. North Carolina State University. Ornamental Disease Information Note No. 3.

JONES 1995: Jones, V. P. 1995. Review of macadamia IPM in Hawaii. Proceedings of the Hawaii

Macadamia Nut Association 35:24

- 32.

JONES 1996: Jones, V. P., P. A. Follett, D. Westcot and C. Campora. 1996. Developing management alternatives for the tropical nut borer, Hypothenumu s obscurus . Proceedings of the Hawaii Macadamia Nut

Association 36:23

- 33.153

JONES 1998: Jones, V. P., N. N. Finson and M. S. Richardson. 1998. Tropical nut borer natural enemies and koa seedworm management update. Proceedings of the Hawaii Macadamia Nut Ass ociation 38:5

- 9.

JONES 1999: Jones, V. P. and M. Aihara

- Sasaki. 1999. Macadamia nut insect pests. Proceedings of the

Hawaii Macadamia Nut Association 39:23

- 38.

KADAR: Kader, A.A. 1992. Postharvest Technology of Horticultural Crops. Univ California Pub. 3 311.

296 pp.

KADIR: Kadir, S. 2001. USDA Crop Profile for Pecans in Kansas. http://pestdata.ncsu.edu/cropprofiles/docs/KSpasture.Html

KAWATE 1995: Kawate, M. 1995. Personal Communications on Minor Crops in Hawaii. University of Hawaii at Manoa, Hono lulu, HI. 6 December, 1995.

KIRKBRIDE: Kirkbride, J.H., Jr., C.R. Gunn, and M.J. Dallwitz. 2006. Family Guide for Fruits and Seeds, vers. 1.0. URL: (http://nt.ars

- grin.gov/sbmlweb/OnlineResources/frsdfam/Index.cfm.

KNIGHT: Knight, Jr., R.J. 1980. Or igin and World Importance of Tropical and Subtropical Fruit Crops. In Tropical and Subtropical Fruits, S. Nagy and P. Shaw, editors. AVI Publishing Company, Inc. Westport, CT.

KNUTSON 1998a: Knutson, A., and B. Ree. 1998. Controlling the pecan nut case bearer. Texas Agri. Ext. Serv. Leaflet 5134. 5 p.

KNUTSON 1998b: Knutson, A., and B. Ree. 1998. Managing Insect and Mite Pests of Commercial Pecans in Texas. Texas Agri. Ext. Serv. Bulletin 1238. 14p.

KROCHMAL: Krochmal, A. and C. Krochmal. 1982. Uncult ivated Nuts of the United States. USDA Forest Service Agricultural Information Bulletin 450. 89 pp.

KUHNLEIN: Kuhnlein, H.V and N. Turner. 1992. Traditional Plant Foods of Canadian Indigenous

Peoples. Gordon and Breach Publishers. Philadelphia. 602 pp.

L AMB: Lamb, George N. 1915. A calendar of the leafing, flowering and seeding of the common trees of the eastern United States. Monthly Weather Review, Suppl. 2, Pt 1. 19 p.

LANDT: Landt, Eugene F., and Robert E. Phares. 1973. Black walnut An American wood. USDA Forest Service, FS

- 270. Washington, DC. 7 p.

LEE, 2008: Lee, M. March 27, 2008. Personal Communication. Treenuts in Korea.

LITTLE: Little, Elbert L., Jr. 1971. Atlas of United States trees, Vol. 1. Conifers and Important

Hardwoods. U.S. Departmen t of Agriculture, Miscellaneous Publication 1146. Washington, DC. 9 p., 313 maps.

LOGAN: Logan, M. 1996. The Packer 1996 Produce Availability and Merchandising Guide. Vance Publishing Corporation. Lincolnshire, IL.

LYLE: Lyle, S. 2006. Fruits and Nu ts. Timber Press. Pp. 387

- 388.

MAGNESS 1971: Magness, J.R., G.M. Markle, and C.C. Compton. 1971. Food and Feed Crops of the United States. New Jersey Agricultural Experiment Station Bulletin 828, Rutgers University, New Brunswick, NJ. 255 pp.154

MANAST ER 1994: Manaster, J. 1994. The Pecan Tree. University of Texas Tech. Press, Tech. Austin,

Texas.

MANASTER 2008: Manaster, J. 2008. Pecans

– The Story in a Nutshell. University of Texas Tech Press, Austin, Texas. 104 pp.

MANSFELD: Hanelt, P. and Insti tute of Plant Genetics and Crop Plant Research (Eds.) 2001. Mansfeld’s Encyclopedia of Agricultural and Horticultural Crops: (Except Ornamentals). 3700 pp. First Edition. Springer Publishing. New York, NY

MARK: Mark’s Fruit Crop, Online information, http://www.uga.edu/fruit/rubus.htm

MARKLE 1998: Markle, G.M., J.J. Baron, and B.A. Schneider. 1998. Food and Feed Crops of the United States. 517 pp. Second Edition. MeisterPro Reference Guides. Willoughby, O hio

MARKLE 2005: Markle, G.M. and B.A. Schneider. 2005. Regulatory Crop Groupings and IPM: Expediting Registration of IPM Pest Control Agents. In E.B. Radcliff and W.D. Hutchinson, Ed.

IPM World Textbook. http://www.ipmworld.umu.edu.

MARQUIS : http://www.na.fs.fed.us/pubs/silvics_manual/volume_2/prunus/serotina.htm

.

MARTIN 1987: Martin, F.W., C.W. Campbell, and R.M. Ruberte. 1987. Perennial Edible Fruits of the

T ropics: An Inventory. U.S. Department of Agriculture. Agricultural Handbook No. 642. 252 pp (Illus.)

MCEACHEM: McEachern, R., and L. A. Stein. 1997. Texas pecan handbook. Texas Agri. Ext. Serv.

Handbook 105.

MCGREGOR: McGregor, S. 1976. Pollination of Economic Crops. Peach. USDA Handbook 496.

MCMAHON: McMahon, M., A. Kofranek, V. Rubatzky. 2007. Hartman’s Plant Science: Growth, Development, and Utilization of Cultivated Plants. 4th Ed. Pearson Prentice Hall Pub. NJ. 594 pp.

MEIER 2001: Meier, U. 2001. Growth Stages of Mono

- and Dicotyledonous Plants. BBCH Monograph Federal Biological Research Centre for Agriculture and Forestry Second Ed.

MICKE 1981: Micke, W. and D. Kester. 1981. Almond Orchard Management. University of California,

Division of A gricultureSciences. Publication 4092.150 pp.

MICKE 1996: Micke, W. 1996. Almond Production Manual. University of California, Division of Agriculture and Natural Resources. Publication 3364. 289 pp.

MITCHEM: Mitchem, W.E., and M.L. Parker. 2005. Orchard f loor management in pecans. North Carolina State University, Horticulture Information Leaflet 380.

MONTOSO: Montoso Gardens, htpp://www.montosogardens.com

MORI: Mori, Scott A. and Ghillean T. Prance. 1987. A Guide to Collecting Lecythicaceae. Annals of t he Missouri Botanical Garden, Vol. 74, No 2, pp. 321

- 330.

MULTILINGAL: Multilingual Multiscript Plant Name Database, the University of Melbourne

. http://www.plantnames.unimelb.edu .au/Sorting/Capsicum.html

NAGAO: Nagao, M. A. and H. H. Hirae. 1992. Macadamia: cultivation and physiology. Critical Reviews in Plant Sciences 10(5):441

- 470.155

NATURAL FOOD HUB: Natural Food Hub and Natural Food Guide Website. http://www.naturalhub.com/

NC STATE: Plant Fact Sheets. Online information. NC State University. http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/in dex.html

NCSU: Bayer Codes for Pests. http://cipm.ncsu.edu/names/index.cfm

NG 2006: NG. Y. 2006. Personal communications. Codex and U.S. Crop Grouping Database

. 31 Aug. 08.

NRCAN: Natural Resources Canada, Species of Concern. http://cfs.nrcan.gc.ca/subsite/mx

212/canadaplum

NRC 1989. National Research Council. 1989. Lost Crops of the Incas: Little

- known Plants of the Andes

with Promi se for Worldwide Cultivation. National Academy Press. Washington, DC.

NRC 2006: National Research Council. 2006. Lost Crops of Africa, Volume II: Vegetables. 378 pp.

National Academies Press.

OIKOS: Oikos Tree Crops Website : http://www.oikostreecrops.com

OLSEN: Olsen, J. and C. Raab. 2002. Harvesting, Handling. And Storing Nuts from the Home Orchard. Hazelnuts, Walnuts, and Chestnuts. Oregon State University Extension Sertvice. Fact Sheet FS

146.

OSTR Y: Ostry, M. 2000. Butternut: An Underused Resource in Norht America. Horttechnology 10(2) no.

2: 302

- 306.

PARKER: Parker, M.L. and K.A. Sorensen. 1994. Growing pecans in North Carolina, North Carolina Cooperative Extension Service Bulletin, AG

- 81.

PAT TERSON: Patterson, W.K. 1994. Culture and care of pecan trees in Arkansas. University of Arkansas Cooperative Extension Service. Pub. A6040. 6 pp.

PAYNE: Payne, J. Johnson, George, and G. Mille. 2008. Chinkapin: Potential New Crop for the South.

2008. The Encyclopedia of Fruits and Nuts. CABI. Cambridge, MA. 945 pp.

PCARRD: Philippine Council for Agriculture, Forestry, and Natural Resources Research and Development. http://maidon.pcarrd.dost.gov.ph/j oomla

PEREZ 2009: Perez, A. and S. Pollack. 2009. Fruit and Tree Outlook. USDA Economic research Service.

FTS

- 339. September 29.

PEREZ 2010: Perez, A., E. Dohlman, and K. Platter. 2010. Fruit and Tree Outlook. USDA Economic

research Service. FTS

- 343. July 30.

PLANTS: USDA Plants Database. 2009. Plant National Database. http://plants.usda.gov/

PLANT NATIONAL DATABASE: Plant National Database. 2004. http://plants.usda.gov /

PLANTS FOR A FUTURE: Plants for a Future webpage

. http://www.pfaf.org/leaflets/edible_uses.php

PLENDERLEITH: Plenderleith, K. 2006. Ricinodendron heudelotii: A State of Knowledge Study

u ndertaken for the Central African Region Program for the Environment. Oxford Forestry Institute, Department of Plant Sciences, University of Oxford, UK.156

POLLACK 2006: Pollack, S. and A. Perez. Fruit and Tree Nuts Situation and Outlook Yearbook 2006.

USDA Economic Research Service. October. FTS

- 2006.

POLLACK 2007: Pollack, S. and A. Perez. Fruit and Tree Nuts Situation and Outlook Yearbook 2007.

USDA Economic Research Service. October. FTS

- 2007.

POLLACK 2008: Pollack, S. and A. Perez. Fruit and Tree Nuts and Outlook Yearbook 2008. USDA

Economic Research Service. October. FTS

- 2008.

POLLACK 2009: Pollack, S. and A. Perez. 2009. Fruit and Tree Nuts Outlook. USDA Economic

Research Service March 27. FTS

- 336.

POPP: Popp, J.S. and H. Scherm. 2002. I PM practices of southern states peach producers in the USA. Acta

Hort. 592: 717

- 724

PURDUE: Purdue Homepage, http://www.hort.purdue.edu/newcrop/default.html

RAMOS: Ramos, D. 1998. Walnut Production Manual, University of California. Division of Agriculture and Natural Resources. Pub. 3373 320 pp..

REHM: Rehm, S. 1994. Multilingual Dictionary of Agronomic Plants. Kluwer Academic Publishers, 101 Philip Drive, Norwell, MA. 286 pp.

REID 19 95: Reid, W. 1995. Growing pecans in Kansas. Kansas State University Experiment Station and Cooperative Extension Service, Manhattan, Kansas. MF

- 1025. ( http://www.oznet.ksu.edu/library/hort 2/mf1025.pdf ).

REID 2003: Reid, W. 2003. Insect pest management systems for native pecans. Southwestern Entomol. Suppl. 27:39

- 44

REICH: Reich, L. 1991. Uncommon Fruits worthy of Attention: A Gardener's Guide. Addison

- Wesley Publishing.

REIGER 2001: Mark. Mark’s Fruit Crop Homepage, May 2001. Web address: http://www.uga.edu/fruit/#Crops

REIGER 2006: Reiger, M. 2006. Introduction to Fruit Crops. Pages 13

– 171. Food Products Press. NY.

RICE: Rice, R. W. Bentley, R. Beede. 1998. Insect and Mite Pests of Pistachios in California. Cooperative Extension, University of California, Division of Agriculture and Natural Resources Publication 21452.

RICHE: Riche, M. 1994. 1992 Census of Agriculture. Volume I, Geographic Area Series, Part 51. United States Summary and State Data. U.S. Department of Commerce. Bureau of the Census. 463 pp.

RICHTER: Richter, H. 2003. Dr. Richter’s Fresh Produce Guide. Try

- Foods International. Apopka, FL. 84

pp.

RIGGS: Ri ggs, K. and C. Brennand. 2005. Preservation Handbook. Utah State University Cooperative

Extension Service. FN/2005/harvest.

RING: RING, D. R., V. R. Calcote, and M. K. Harris. 1983. Verification and generalization of a degree

day model predicting pecan nut casebearer (Lepidoptera:Pyralidae) activity. Environ. Entomol. 12:487

- 489.157

6 ROOK: Rook, E. J. S. Flora, Fauna, Earth, and Sky... The Natural History of the Northwoods. http://www.rook.org /earl/bwca/nature/index.html

.

ROSENGARTEN: Rosengarten, F. 1989. The Book of Edible Nuts. Walker Publ. Co. 384 pp.

ROY: Roy, S.K., D.P. Waskar, and D.S. Khurdiya. 1995. Other Tropical Fruits. In Handbook of Fruit Science and Technology, D.K. Salunkh e and S.S. Kadam, editors. Marcel Dekker, Inc., New York, NY.

SAUER: Sauer, J.D. 1993. Historical Geography of Crop Plants

- A Select Roster. Lewis Publishers. CRC Press, Inc. Boca Raton, FL. 309 pp.

SANDERLIN 2000: Sanderlin, R. and J. Pyzner. 2000. Pe can Scab Disease. Louisiana Cooperative Extension Service. Pub. 2025. 2 pp.

SANDERLIN 2002: Sanderlin, R. 2002. Pecan Diseases in Louisiana. Louisiana Cooperative Extension Service. 3 pp.

SANDERLIN 2004: Sanderlin, R. and J. Pyzner. 2004. Louisiana reco mmendations for the control of pecan diseases in 2004 Plant Disease Control Guide. Louisiana Cooperative Extension Service. Pub. 1802. 6 pp.

SCHMIDT: Schmidt, A. 1996. Chef’s Book of Formulas, Yield, and Sizes. Second Ed. Van Nostrand Reinhold. NY 358 pp.

SCHNEIDER 2000. Schneider, B.A. 2000. Review of Request for Residue Data Developed for Almonds to be Translatable to Pistachios for Establishing Toleracances. DP Barcode D212794. US Environmental Protection Agency. August 24. 3 pp.

SCHNEIDER 1997. Schneider, B.A. 1997. Review of Amendment to Include Pistachio Nuts as a Member of the Tree Nut Crop Group (40CFR180.41). Evaluation of the Supporting data. DP Barcode

D212794. CBTS 15228. US Environmental Protection Agency. March 4. 16 pp.

SCHNEIDER 1 998: Schneider, B.A. 1998. Response to Comments from DuPont Agricultural Products on Crops that are Not Normally Rotated for the Draft Residue Chemistry Guidelines (860 Series). DP Barcode: D226438. CBTS# 17215. US Environmental Protection Agency. May 15.

SCHREIBER: Schreiber, A. and L. Ritchie. 1995. Washington Minor Crops. Food and Environmental Quality Lab, Washington State University. 325 pp.

SECRETARIAT: Secrecretariat. 2010. Codex Alimentarius Commission. Distributution of the Reports of

the For ty

- second Session of the Codex Committee on Pesticide Residues (Alinorm 10/33/24). May 2010. 206 pp.

SERV

- AG: Serv

- Ag Analytical Services. 2007. Almond Sampling and Growth Stages. Devonport, TAS. (www.serv

- ag.com.au).

SHARASHKIN: Sharashkin, L. and M . Gold. 2004. Pine Nuts (Pignolia): Species, Products, Markets, and

Potential for U.S. Production. Northern Nut Growers Association. 95 th Annual Report. Pp 1

- 10.

SMITH: Smith, G. and M. Day. 1995. Pecan Pest Management: Insects and Diseases. University o f Missouri, Columbia, Missouri. MP

- 711 ( http://muextension.missouri.edu/xplor/miscpubs/mp0711.htm ).

SMITH 1998: Smith, M.W. and B.D. McCraw. 1998. Weed control in pecans, apples, a nd peaches

– 1998.Oklahoma State Univ. Coop. Ext. Ser. CR

- 6242. 4 pp.158

SORENSEN: Sorensen, K.A. 1994. Pecan insects and their management. North Carolina State University.

Fruit Insect Note #P

- 2.

STEBBINS: Stebbins, R.L.; Walheim, L. 1981. Western Fruit, Berries & Nuts ; HP Books, Inc.: Tucson,

AZ.

Stockey: Stockey, R.A. 1982. The Araucariaceae: an evolutionary perspective. Review of Palaeobotany and Palynology 37: 133

- 154.

TAMU: 2002 web issue of Horticulture Update . Texas Cooperative Extension, The Texa s A&M University System, College Station, Texas. http://aggie

horticulture.tamu.edu/plantanswers/publications/vegetabletravelers/okra.html

TEVIOTDAL E 2001: Teviotdale, Beth, et al. Fungicide Efficacy and Timing for Deciduous Fruit and Nut Tree Crops and Grapevines, 2001 (Almond, Apple and Pear, Apricot, Cherry, Peach, Pistachio, Plum, Prune, Grape). University of California Kearney Agricultural Cente r. Web address: http://www.uckac.edu/plantpath/2001_timing&eff.pdf

TEVIOTDALE 2002. Teviotdale, B., Michailides, T., and J. Pscheidt., ed. 2002. Compendium of Nut Crop Diseases in Temper ate Zones. The American Phytopathological Society. St. Paul, MN. 89 pp.

TOBIN: Tobin, M. E., A. E. Kohler and R. T. Sugihara. 1997. Effects of simulated rat damage on yields of macadamia trees. Crop Protection 16(3):203

- 208.

TRADEWINDSFRUIT: Trade Winds Fruit Tropical Plant Database http://www.tradewindsfruit.com/index.htm

TRADITIONALTREE: http://www.traditionaltree.org

TREE BOOK: Minnesota Power webpage. http://www.mnpower.com/treebook/fact84.html

.

TREEHELP: TreeHelp. http://www.treehelp.com/trees/crabapple/index.asp

TRIPOD: Ancient Aztec Herbal Remedies. http://electrocomm.tripod.com/tejocote.html

TURNER: Turner, J. 2003. Pecan production in southwest Arkansas. Univ. of Ark. Coop. Ext. Ser., Miller County, Texarkanna, AR. 16 pp.

USDA

- NASS Agricultural Statistics 2009: http://www.usda.gov/nass/pubs/agr05/acro05.htm

USDA 1996: USDA. 1996. Noncitrus Fruits and Nuts: 1995 Summary. National A gricultural Statistics Service. USDA. Washington, D.C.

USDA 2000: USDA 2000. USDA Agricultural Chemical Usage, 1999 Fruit and Nut Summary. July 2000.

USDA 2007: USDA 2007. Noncitrus Fruits and Nuts 2007 Summary, January 2008. http://www.usda.gov/nass/PUBS/TODAYRPT/ncit0108.pdf

USDA 2008: USDA. 2008. Noncitrus Fruits and Nuts: 2008 Summary. National Agricultural Statistics Service. USDA. Washington, D.C.

USDA 2005: USDA 2005. Agricultural Statistics. National Agricultural Statistics Service. US Government Printing Office. Washington, D.C. 486 pp.

USDA 2009 CROP PROFILES: USDA 2009. http://cipm.ncsu.edu/cropprofiles/cropprofiles.cfm159

USDA 2007: USDA 2007. Agricultural S tatistics. National Agricultural Statistics Service. US Government Printing Office. Washington, D.C. 486 pp.

USDA AMS 1966: USDA, AMS. 1966. United States Standards for Grades of Brazil Nuts in the Shell. USDA Agricultural Marketing Service. Fruit and Vegetable Programs. Fresh Products Branch. Effective August 25. Reprinted January 1997.

USDA AMS 1968: USDA, AMS. 1968. United States Standards for Grades of Shelled Walnuts (Juglans regia). USDA Agricultural Marketing Service. Fruit and Vegetable Progr ams. Fresh Products Branch. Effective September 1. Reprinted January 1997.

USDA AMS 1969: USDA, AMS. 1969. United States Standards for Grades of Shelled Pecans. USDA Agricultural Marketing Service. Fruit and Vegetable Programs. Fresh Products Branch. Eff ective July 15. Reprinted January 1997.

USDA AMS 1970: USDA, AMS. 1970. United States Standards for Grades of Filberts in the Shell. USDA Agricultural Marketing Service. Fruit and Vegetable Programs. Fresh Products Branch. Effective September 1. Reprint ed January 1997.

USDA AMS 1976a: USDA, AMS. 1976a. United States Standards for Grades of Pecans in the Shell. USDA Agricultural Marketing Service. Fruit and Vegetable Programs. Fresh Products Branch. Effective October 15. Reprinted January 1997.

USDA AM S 1976b: USDA, AMS. 1997b. United States Standards for Grades of Walnuts (Juglans regia) in the Shell. USDA Agricultural Marketing Service. Fruit and Vegetable Programs. Fresh Products Branch. Effective November 15. Reprinted January 1997.

USDA AMS 1992: USDA, AMS. 1992a. Weights, Measures, and Conversion Factors for Agricultural Commodities and Their Products. USDA AMS, ERS. Agricultural Handbook No 697.

USDA AMS 1997a: USDA, AMS. 1997b. United States Standards for Grades of Shelled Almonds. USDA Agric ultural Marketing Service. Fruit and Vegetable Programs. Fresh Products Branch. Effective March 24. Reprinted March 1997.

USDA AMS 1997b: USDA, AMS. 1997c. United States Standards for Grades of Almonds in the Shell. USDA Agricultural Marketing Service. F ruit and Vegetable Programs. Fresh Products Branch. Effective March 24. Reprinted March 1997.

USDA AMS 2004: USDA, AMS. 2004. United States Standards for Grades of Pistachio Nuts in the Shell. USDA Agricultural Marketing Service. Fruit and Vegetable Prog rams. Fresh Products Branch.

Effective December 23.

USDA NASS 2002 National Agricultural Statistical Service. (2002). Agricultural Chemical Usage 2001 Fruit Summary. USDA NASS, Washington, DC.

USDA NASS 2006a: USDA NASS. 2006. California Fruit and Nut Re view. USDA National Agricultural Statistics Service. California Field Office. Vol. 26 (1): 1

- 13.

USDA NASS 2006b: USDA NASS. 2006. Crop Production. National Agricultural Statistics Service. Agricultural Statistics Board. Cr Pr 2

- 2. Dec. 2006.

USDA NASS 2 006c: USDA NASS. 2006. Fruits and Tree Nuts: Blooming, Harvesting, and Marketing Dates. USDA National Agricultural Statistical Service. (NASS), Agricultural Handbook Number

729. Dec. 2006.160

USDA NRCS: USDA, NRCS. 1995. The Plants Database. Natural Re sources Conservation Service (formerly Soil Conservation Service). National Plant Data Center, USDA. Baton Rouge, LA. 1008 pp.

USEPA 2008: US EPA. 2008. Title 40

- Protection of Environment. Parts 150 to 189. Code of Federal Regulations. Office of th e Federal Register. U.S. Government Printing Office, Washington D.C. 620 pp.

VAN WYK: Van

- Wyk. 2006. Food Plants of the World. First Ed. Timber Press.

VANN: Vann, S. and P. Fenn. 2003. Diseases of Pecan, p. 26, In: R. Cartwright (ed.). Arkansas Plant

D isease Control Products Guide

- 2003. Univ. of Ark. Coop. Ext. Ser. Misc. Publication 154.

VAUGHAN: Vaughan, J. and C. Geissler. 1997. The New Oxford Book of Food Plants. Oxford University Press, Oxford, NY. 239 pp.

VON: Von Broembsen, S. 2001. Pecan di seases: prevention and control. Oklahoma State Univ. Coop. Ext.

Ser. F

- 7642. 6 pp.

WARMUND: Warmund, M.R. 2007. Pollinating Fruit Crops. University Missouri Cooperative Extension Service AgGuides. (https://muextension.missouri.edu/explore/agguides/hort/g 06001.htm).

WATADA: Watada, A., R. Herner, A. Kader, R. Romani, and G. Staby. 1984. Terminology for the Description of Developmental Stages of Horticultural Crops. HortScience 19:20

- 21.

WATSSON: Watson, L. and M.J. Dallwitz. 1992. The Families of Flowe ring Plants: Descriptions, Illustrations, Identification, and Information Retrieval. Rosaceae. Juss. (http://www.biodiversity.uno.edu/delta).

WHEALY: Whealy, K. and S. Demuth. 1993. Fruit, Berry and Nut Inventory. Second Edition. Seed

Savers Publicati ons. Decorah, IA. 518 pp.

WIKIPEDIA: Wikipedia, The Free Encyclopedia Online information. http://en.wikipedia.org/wiki/Main_Page

WILLIAMS: Williams. R.D. 1979. Black Walnut, Juglandaceae

-- Waln ut family. (http://www.na.fs.fed.us/pubs/silvics_manual/volume_2/juglans/nigra.htm

WOODRUFF: Woodruff, J.G. 1979. Tree Nut Production, Processing, Products. AVI Publ. Westport, CT. 377 pp.

APPENDIX II

– Some Types of Tree Nut Products Available in the Marketplace.

Brazil Nuts:

25 Pound Cases Brazil Nuts (In Shell ). Brazil Nuts, imported from South America. This is a very nutritious nut with a very hard shell.1 61

25 Pound Cases Raw Brazil Nuts (No Shell) Another naturally healthy nut, Brazil Nuts are high in protein, calcium, iron, zinc, and are one of the best natural dietary sources of selenium.

25 Pound Cases Roasted Brazil Nuts (Salted) Anothe r healthy nut high in protein, calcium, iron

and zinc.

20 Pound Cases Dark Chocolate Covered Brazil Nuts Brazils roasted, then triple dipped and layered in dark chocolate.

25 Pound Cases Roasted Brazil Nuts (Unsalted) The smaller the Brazil Nut kernel the richer and tastier the flavor. These are sized, are roasted and, are packed with protein.

25 Pound Cases Brazil Nut Pieces All natural raw brazil nut pieces for snacking, baking, and cooking. Pa cked with selenium.

Chestnuts:

Fresh Chestnuts Chestnuts roasting on an open fire...Traditional fresh chestnut have unforgettable smell of fresh roasting chestnuts.

Dried Chestnuts Traditional Dried Chestnuts, imported from Italy. These chestnuts must be prepared before they are consu med. For chestnut based recipes, boiled, or even candied. They can also be ground into chestnut flour. To use: boil for 45 minutes or until tender and use as directed in recipes.162



### Hazelnuts (Filberts)

Hazelnuts / Filberts (In Shell) Harvested at just the right time, these Jumbo Hazelnuts are from Oregon. Loaded with nutrition filberts can be eaten whole, ground, flaked or made into butter or oil.

Raw Hazelnuts / Filberts (No Shell) Natural hazelnuts (filberts) are high in protein and low in
fat.

Roasted Hazelnuts / Filberts (Salted) The largest hazelnuts from Oregon roasted and lightly

salted with skin on.

Blanched Hazelnuts Blanched hazelnuts from Turkey

Organic Hazelnuts (Raw, No Shell) These fresh organic hazelnuts are certified organic by CCOF. They contain no additives or preservatives and are grown without pesticides

.

Dark Choco late Covered Hazelnuts Dark chocolate covered hazelnuts.

Hazelnut Flour Natural filbert flour is great for baking. An alternative for standard wheat

flour.163

Milk Chocolate Hazelnuts Milk chocolate covered hazelnuts

Hickory Nuts:

Ozark in shell hickory 5 lb box

- In 2008 the harvest was outstanding of shag and shell bark nuts. These are large hickory nuts.

.

Pistac hios:

Turkish Pistachios (Antep) These are the most popular Turkish pistachios. Antep Turkish Pistachios, the closest to the supreme Iranian variety, are the smallest pistachio a nd a little harder to open than the California, but pack the most punch. These roasted and salted nuts are the sweetest pistachios.

Roasted Pistachios (Salted and unsalted No Shell) Roasted, no shell, with and without salt California pistachios. Good for baking, salads or on ice

cream!

Raw Pistachios (No shell)

Naturally r aw with no shell California pistachios. For those who like as many nutrients as possible

Red Pistachios Pistachios are an excellent and rich tasting nut that is high in potassium.164

Toffee Chocolate Pistachios : Pistachios, encrusted in a toffee shell, and then coated in layers of the fine st milk or semi

- sweet
chocolate

Turkish Pistachios (Siirt) Roasted and salted Turkish Pistachios are have some of the most exotic and tantalizing taste found only in this imported nut.

Ginger Soy Pistachios Crispy and fresh roasted pistachios seasoned with a ginger and soy flavor.

Chili Lime Pistachios Pistachios flavored with that spicy and citrus taste of chili and lime.

Turkish Pistachios (Antep, Unsalted) Imported Turkish pistachios roasted in the shell but with

no salt.

Turkish Pistachios (Raw, No Shell) Raw Antep kernels out of the s hell.165

Pistachi o Flour All natural pistachio flour. Use in baking, cooking, or breads.

Dark Chocolate Covered Pistachios Roasted pistachio kernels smothered in delicious dark

chocolate

Habanero Pistachios We searched high and low for the best tasting flavored pistachios that pack

the most heat. These habanero pistachios will surely satisfy your heat seeking taste buds!

Chili Lemon Pistachios

Chili Lemon Pistachios have spicy heat of chili mixed with the refreshing taste of lemon.

Garlic Onion Pistachios California pistachios are flavored with real crush ed garlic and onion.

Hickory Pistachios These hickory flavored pistachios are perfectly seasoned. California pistachios
with smoked flavor.