1

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON, DC 20460

OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION

PC Code: 090100

DP Barcode: 410516,412426, 412427, 412479

Date: November 27, 2013

MEMORANDUM

Subject: Chlorantraniliprole (E2Y45): Ecological Risk Assessment to Support New Use on Peanut, 

Subgroup Additions to Previously Assessed Crop Groups, and Evaluation of Multiple Crop 

Seasons for Numerous Previously Assessed Uses

To: Venus Eagle, Product Manager 01

Jennifer Urbanski, Risk Manager Reviewer

Registration Division (7505P)

From: Michael B. Lowit, Ph.D., Ecologist

Christopher M. Koper, Chemist

Monica Wait, Acting RAPL

Sujatha Sankula, Ph.D., Branch Chief

Environmental Risk Branch I

Environmental Fate and Effects Division (7507P)

Office of Pesticide Programs

This memorandum summarizes the ecological risks associated with proposed new uses of the 

insecticide chlorantraniliprole. In addition, the Coragen® label now includes annual limits for 

certain crops that reflect multiple crop seasons; risk associated with multiple crop seasons 

was considered due to the persistence of chlorantraniliprole. The risk assessment considers 

three products: Altacor®(Reg. # 352-730), Coragen®(Reg. # 352-729), and PrevathonTM

(Reg. # 352-844).

Foliar applications (ground or aerial spray and overhead chemigation) are proposed up to 

0.065 - 0.067 lb ai/A for peanut use depending on the product (Coragen

®

or PrevathonTM); 

the minimum application interval is three days and the annual limit is 0.2 lb ai/A of 

chlorantraniliprole containing products.

The following label changes were proposed: update stone fruit crops to group 12-12 and tree 

nut crops to group to 14-2 (commodities added, no rate change); add green onion subgroup 3-

07B to the bulb vegetable group (no rate change); increase the tolerance for spice subgroup 

19B; and add a last application day before harvest (10 days) for papaya and passionfruit 

(tropical fruit group). These changes do not affect the risk conclusions from previous 

assessments and are not considered further.

Numerous crops were previously assessed assuming that the annual maximum application rate 

was equivalent to the seasonal application rate (0.2 lb ai/A). The Coragen®label now provides 

an annual limit for many crops that reflect multiple crop seasons (0.4 lb ai/A - 0.8 lb ai/A). The 

single application rates, application intervals, and seasonal rates have not changed.
2

1. Risk Summary

Risk concerns for the proposed use on peanut and for multiple crop seasons of previously 

assessed uses (see Table 2) are the same as previous assessments (i.e., the same taxonomic 

groups); however the RQs for multiple crop seasons are higher than single crop seasons. There 

is a risk concern for direct effects on listed and non-listed aquatic invertebrates (acute and 

chronic). Risk to terrestrial invertebrates is a concern considering the application rates, the 

submitted toxicity data, and the mode of action of chlorantraniliprole as an insecticide. Finally, 

potential risks to listed terrestrial plants cannot be precluded at this time because a definitive 

NOEC or EC05 has not been established for dicots. Risk of direct effects to other aquatic and 

terrestrial organisms is below the Agency screening levels of concern (LOC). A summary of risk 

concerns is presented in Table 1.

Table 1. Summary of LOC Exceedences for the Assessed Uses of Chlorantraniliprole

Effect

Taxonomic Group

Birds Mammals Terrestrial

Plants

Terrestrial 

Invertebrates Fish Aquatic Invertebrates

Aquatic 

Plants

Direct Effect (LOC 

Exceedence)

-- -- --

a

√

b

-- √ --

Indirect Effect 

Potential

√ √ √ √ √ √ √

aThe available data could not preclude potential risk to terrestrial plants: dicots (listed and non-listed species).

bRQs were not calculated due to lack of a standard quantification methodology. Therefore, the ‘LOC exceedance’ 

was based on lines of evidence including application rate, toxicity data, and the mode of action of chlorantraniliprole.

2. Data Gaps

Risk quotients (RQs) could not be calculated for listed dicots (terrestrial plants) because a NOEC 

or EC05 was not established in the available Tier 1 or Tier II seedling emergence studies. Risk 

to listed dicots will be assumed until data is made available that defines a NOEC for dicots.

3. Summary of Proposed Use

Foliar applications (ground or aerial spray and overhead chemigation) are proposed up to 

0.065 - 0.067 lb ai/A for peanut use depending on the product (Coragen®or PrevathonTM). 

The Coragen label does not permit overhead chemigation for use on peanut.

The following label changes were proposed: update stone fruit crops to group 12-12 and tree 

nut crops to group to 14-2 (commodities added, no rate change); add green onion subgroup 3-

07B to the bulb vegetables group (no rate change); increase the tolerance for spice subgroup 

19B; and add a last application day before harvest (10 days) for papaya and passionfruit 

(tropical fruit group). 

Numerous crops were previously assessed assuming that the annual maximum application rate 

was equivalent to the seasonal application rate (0.2 lb ai/A). The Coragen®label now provides 

an annual limit for many crops that reflect multiple crop seasons (0.4 lb ai/A - 0.8 lb ai/A). The 

single application rates, application intervals, and seasonal rates remain the same as previously 

assessed with two minor exceptions. Table 2 summarizes the proposed new use and the 
3

previously assessed uses with multiple crop seasons; crop grouping additions on the Altacor®

label (as noted above) are not included because application rates did not change.

Table 2. Assessed Use Rates for Chlorantraniliprole 

Product Use1Single Max 

Application 

Rate

(lb ai/A)

Max Number of 

Applications (min 

interval, days)

Max 

Seasonal 

Rate

(lb ai/A)

Max 

Number 

of Seasons

Max 

Annual 

Rate

(lb ai/A)

DuPont 

Coragen 

Proposed New Use

Peanut 0.065 3 (3) 0.2 1 0.2

Reassessed Uses (Annual Rates)

Brassica, leafy 

vegetables2

0.065 3 (3) 0.2 4 0.8

Bulb vegetables; 

onion, bulb 

subgroup, green 

onion subgroup 

3-07B

0.065 3 (7) 0.2 3 0.6

Cucurbit 

vegetables20.09 2 (5) 0.2

3 0.6

Fruiting 

vegetables 2

0.098 2 (5) 0.2 3 0.6

Herbs 0.065 3 (3) 0.2 4 0.8

Leafy 

vegetables, nonbrassica2

0.098 2 (3) 0.2 4 0.8

Legume 

vegetables 3,5

0.098 2 (3) 0.2 3 0.6

Legume 

vegetables 

(foliage)

0.065 3 (3) 0.2 3 0.6

Spices 0.065 3 (3) 0.2 4 0.8

Strawberry 0.065 3 (7) 0.2 2 0.4

Tuberous and 

corm 

vegetables4,5

0.065 3 (3) 0.2 4 0.8

Dupont 

Prevathon

Proposed New Use

Peanut 0.067 3 (3) 0.2 1 0.2

1

Foliar (air and ground) applications unless indicated otherwise.

2

Soil-at planting and drip chemigation applications are permitted at similar rates (see DP 381819+ for details).

3

Previously assessed at the foliage of legume rate (above).

4

Previously assessed using a 5 day interval.

5

It is unknown if the label changed since the initial assessment or if a typographical error was made at the time of 

the assessment.
4

4. Exposure Summary

4.1. Aquatic Exposure

The PRZM/EXAMS input parameters are shown in Table 3. EECs are presented in Table 4. A 

representative PRZM/EXAM model input is presented in Appendix 1.

Table 3. PRZM/EXAMS Input Parameters for Chlorantraniliprole

Input 

Parameter

Value Comment Source

Scenarios: Peanut:

NC Peanut

Onion:

CA, GA Onion

Spice:

CA Lettuce

OR Mint

CA Row Crop

PA Vegetable

Brassica (Cole) Leafy Vegetables:

CA Cole Crop

Cucurbit Vegetables:

FL Cucumber

MI, MO, NJ Melon

Fruiting Vegetables:

CA, FL, PA Tomato

Leafy Vegetables:

CA Lettuce

Legumes:

MI Beans

Leaves of /and Root and Tuber Vegetables:

FL Carrot

ID, ME Potato

MN Sugarbeet

NC Sweet Potato

Strawberry:

FL Strawberry

representative scenarios for 

each use

N/A

Maximum 

Single 

Application 

Rate

lb ai/acre (kg 

ai/ha)

Peanut: 0.067 (0.075) 

Onion: 0.067 (0.075) 

Spice: 0.067 (0.075) 

Brassica (Cole) Leafy Vegs: 0.067 (0.075) 

Cucurbit Vegetables: 0.100 (0.112) 

Fruiting Vegetables: 0.100 (0.112) 

Leafy Vegetables: 0.100 (0.112) 

Legumes: 0.100 (0.112) 

Leaves of /and Root and Tuber Vegs: 0.067 

(0.075) 

Strawberry: 0.067 (0.075) 

proposed maximum single 

application rate

modeled single rates were 

slightly higher than the 

labeled rates (rate = the 

seasonal application 

rate/number of applications 

per season)

proposed label
5

Input 

Parameter

Value Comment Source

Applications 

per Year

Peanut: 3

Onion: 9 

(3 apps/season x 3 seasons)

Spice: 12

(3 apps/season x 4 seasons)

Brassica (Cole) Leafy Vegs: 12

(3 apps/season x 4 seasons)

Cucurbit Vegetables: 6

(2 apps/season x 3 seasons)

Fruiting Vegetables: 6

(2 apps/season x 3 seasons)

Leafy Vegetables: 8

(2 apps/season x 4 seasons)

Legumes: 6

(2 apps/season x 3 seasons)

Leaves of /and Root and Tuber Vegs: 12

(3 apps/season x 4 seasons)

Strawberry: 6

(3 apps/season x 3 seasons) 

label directions. Application 

number for maximum single 

application rate.

proposed label

Application 

Interval (days)

Peanut: 3

Onion: 7 

Spice: 3

Brassica (Cole) Leafy Vegs: 3

Cucurbit Vegetables: 5

Fruiting Vegetables: 5

Leafy Vegetables: 3

Legumes: 3

Leaves of /and Root & Tuber Vegs: 3

Strawberry: 7

proposed application 

intervals

proposed label
6

Input 

Parameter

Value Comment Source

Date of Initial 

Application

(scenario: daymonth)

Peanut:

NC Peanut: 16-05

Onion:

CA Onion: 18-05

GA Onion: 18-05

Spice:

CA Lettuce: 21-04

OR Mint: 11-07

CA Row Crop: 18-03

PA Vegetable: 17-09

Brassica (Cole) Leafy Vegetables:

CA Cole Crop: 08-02

Cucurbit Vegetables:

FL Cucumber: 01-11

MI Melon: 11-06

MO Melon: 17-06

NJ Melon: 16-06

Fruiting Vegetables:

CA Tomato: 17-06

FL Tomato: 07-04

PA Tomato: 16-06

Leafy Vegetables:

CA Lettuce: 21-04

Legumes:

MI Beans: 13-07

Leaves of /and Root and Tuber Vegetables:

FL Carrot: 01-01

ID Potato: 01-08

ME Potato: 17-09

MN Sugarbeet: 17-09

NC Sweet Potato: 01-09

Strawberry:

FL Strawberry: 27-10

For most crops, to give a 

representative window of the 

growing season, the date of 

initial application (season 1) 

was selected as two weeks 

(14 days) before crop 

maturation from crop 

scenario data. 

When modeling multiple 

seasons, a 14 day interval 

was arbitrarily selected to 

represent the time between 

the final application of the 

preceding season and first 

application of the following 

season.

An arbitrary date of June 1 

was selected for FL Citrus 

and the date of crop 

emergence of May 16 was 

selected for NC Peanut due to 

inconsistencies within the 

crop scenario dates for these 

crops. 

For FL Cucumber, November 

1 was selected as the initial 

date of application in order to 

fit all applications in a given 

calendar year which is 

needed to run the model.

Crop Scenarios

Application 

Method

Foliar: aerial and ground label directions. Aerial only 

modeled for Brassica, 

cucurbit, fruiting, leafy, root 

and tuber vegetables, 

legumes, and strawberry.

proposed label

CAM Input 2 (foliar: aerial, ground) (2) linear foliar based on crop 

canopy

US EPA, 2005

IPSCND Input Peanut: 1

Onion: 2

Spice: 3

Brassica (Cole) Leafy Vegs: 2

Cucurbit Vegetables: 3

Fruiting Vegetables: 3

Leafy Vegetables: 2

Legumes: 3

Leaves of /and Root & Tuber Vegs: 3

Strawberry: 3

remaining pesticide on 

foliage is:

(1) converted to surface 

application to the top soil 

layer,

(2) completely removed after 

harvest

(3) Retained as surface 

residue and continues to 

decay. This input only 

applies to foliar applications 

(CAM 2).

US EPA, 2005
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Input 

Parameter

Value Comment Source

Spray Drift 

Fraction

0.05 (aerial)

0.01 (ground)

-- Input parameter 

guidance 

(USEPA, 2009) 

Application 

Efficiency

0.95 (aerial)

0.99 (ground)

-- Input parameter 

guidance 

(USEPA, 2009)

Molecular Mass 

(g/mol)

483.15 -- --

Vapor Pressure 

at 25°C (torr)

1.57 x 10-13-- DuPont 16517

Henry’s Law 

Constant

(atm-m

3

/mol)

9.76 x 10-14 estimated calculated from 

solubility, vapor 

pressure and 

molecular weight

Solubility in 

Water (mg/L)

1.023 -- MRID 

46889026

Organic Carbon 

Partition 

Coefficient 

(KOC) (L/kgOC)

330 1represents the average KOC

from 5 values

MRID 

46889123

Aerobic Soil 

Metabolism 

Half-life (days)

627 2 , 3, 4 Calculated 90th

percentile of mean. (mean= 

509 days, SD= 253 days, t= 

1.40, n= 9)

*Several reported half-lives 

in MRID 46889124

were not used because of 

poor fit with first-order 

degradation model

MRID 

46889014

MRID 

46889015

MRID 

46889124

Aerobic 

Aquatic 

Metabolism 

Half-life (days)

341 2 Calculated 90th percentile of 

mean. Mean= 178 days, SD= 

74.95 days, t= 3.078, n=2

MRID 

46889016

Anaerobic 

Aquatic 

Metabolism 

Half-life (days)

624 208 days single half-life

(3 × 208 days per EFED 

guidance)

DuPont 14568

Hydrolysis 

Half-lives 

(days)

0 (stable) pH 7 MRID 

46889017

Aqueous 

Photolysis

Half-life (days)

32.8 5 Natural sunlight half-life MRID 

46889122

N/A = Not Applicable

1 Koc values include 152, 438, 535, 268, 255.

2 tinput=Mean + (t90,n-1*SD) / √N

3 EFED recalculated first-order half-lives for both benzo- and pyrazole-labeled chlorantraniliprole. The calculated half-lives are based 

on aerobic soil metabolism data in non-sterile soil at 250C. Half-lives used in the assessment include 578, 537, 375, 41, 247, 228, 889, 

924, 396 days. 

4 The 90th percentile of the mean half-life for chlorantraniliprole was 600 days for half-lives values presented in the OECD 

Chlorantraniliprole Volume 3(1): Annex B, Environmental Fate and Behavior. (mean = 491 ( 886, 539, 380, 233, 323, 629, 423, 518 

days); SD=203; t90, n-1 =1.417; N=8

5 The natural sunlight half-life value of 32.8 days was modeled because this better half-life characterizes the behavior of 

chlorantraniliprole in the environment. MRID 46889018 calculates a half-life of 0.31 days from a xenon arc lamp experiment using 

continuous irradiation.
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Table 3. Chlorantraniliprole Estimated Environmental Concentrations (EECs) for Surface 

Water Based on Selected Crop Scenarios

Proposed

Label Use

PRZM/EXAMS

Scenario1

(first app date)

Method2

Application Rate

(interval between 

applications)

Peak 

EEC 

(μg/L)

21 Day

EEC 

(μg/L)

60 Day

EEC 

(μg/L)

DupontTM Coragen®insect control with RYNAXPYR

® [EPA Reg. No. 352-729]

Peanuts NC Peanut

(May 16 – foliar)

A 3 app @ 0.067 lb ai/acre

(3-day interval)

3.98 3.84 3.68

G 3.23 3.10 2.90

Bulb 

vegetables; 

onion, bulb 

subgroup, green 

onion subgroup 

3-07B

CA Onion

(May 18 – foliar)

A

3 app @ 0.067 lb ai/acre

(7-day interval)

[0.2 lb ai/A/crop]

[0.6 lb ai/A/year]

6.74 6.46 6.10

G 5.02 4.74 4.57

GA Onion

(May 18 – foliar)

A 24.46 23.86 22.54

G 23.07 22.48 21.22

Spice

Subgroup 

19B/Herb 

Subgroup 19A

CA Lettuce

(April 21 – foliar)

A

3 app @ 0.067 lb ai/acre

(3-day interval)

[0.2 lb ai/A/crop]

[0.8 lb ai/A/year]

30.93 30.07 29.04

G 28.36 27.43 26.34

OR Mint

(July 11 – foliar)

A 14.43 14.11 13.69

G 10.03 9.84 9.69

CA Row Crop

(March 18 – foliar)

A 15.66 15.38 15.31

G 12.42 12.11 11.68

PA Vegetable

(Sept 17 – foliar)

A 28.81 28.50 27.01

G 25.61 24.99 23.63

Brassica (Cole)

Leafy 

Vegetables

CA Cole Crop

(February 08 - foliar) A

3 app @ 0.067 lb ai/acre

(3-day interval)

[0.2 lb ai/A/crop]

[0.8 lb ai/A/year]

26.43 26.29 25.86

Cucurbit 

Vegetables

FL Cucumber

(November 01 – foliar)

A

2 app @ 0.100 lb ai/acre

(5-day interval)

[0.2 lb ai/A/crop]

[0.6 lb ai/A/year]

26.16 25.35 22.97

MI Melon

(June 11 – foliar) 13.41 13.04 12.58

MO Melon

(June 17 – foliar) 19.41 18.58 17.29

NJ Melon

(June 16 – foliar) 19.15 18.61 18.01

Fruiting 

Vegetables

CA Tomato

(June 17 – foliar)

A

2 app @ 0.100 lb ai/acre

(5-day interval)

[0.2 lb ai/A/crop]

[0.6 lb ai/A/year]

13.34 13.08 12.60

FL Tomato

(April 7 – foliar) 26.13 25.10 23.74

PA Tomato

(June 16 – foliar) 23.67 22.93 22.13

Leafy 

Vegetables CA Lettuce

(April 21 – foliar) A

2 app @ 0.100 lb ai/acre

(3-day interval)

[0.2 lb ai/A/crop]

[0.8 lb ai/A/year]

25.95 24.95 24.00

Legumes

MI Beans

(July 13 – foliar) A

2 app @ 0.100 lb ai/acre

(3-day interval)

[0.2 lb ai/A/crop]

[0.6 lb ai/A/year]

35.07 34.41 33.58
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Proposed

Label Use

PRZM/EXAMS

Scenario1

(first app date)

Method2

Application Rate

(interval between 

applications)

Peak 

EEC 

(μg/L)

21 Day

EEC 

(μg/L)

60 Day

EEC 

(μg/L)

Root and Tuber 

Vegetables

Leaves of Root 

and Tuber 

Vegetables

FL Carrot

(January 01 – foliar)

A

3 app @ 0.067 lb ai/acre

(3-day interval)

[0.2 lb ai/A/crop]

[0.8 lb ai/A/year]

29.64 28.20 27.15

ID Potato

(August 01 – foliar) 17.32 17.13 16.74

ME Potato

(September 17 – foliar) 36.13 35.70 35.04

MN Sugarbeet

(September 17 – foliar) 27.90 27.71 27.16

NC Sweet Potato

(September 01 – foliar) 30.56 30.17 29.65

Strawberry FL Strawberry

(October 27 – foliar) A

3 app @ 0.067 lb ai/acre

(7-day interval)

[0.2 lb ai/A/crop]

[0.4 lb ai/A/year]

9.86 9.57 8.96

DupontTM Prevathon®insect control with RYNAXPYR

® [EPA Reg. No. 352-844]

Peanuts NC Peanut

(May 16 – foliar)

A 3 app @ 0.067 lb ai/acre

(3-day interval)

3.98 3.84 3.68

G 3.23 3.10 2.90

Bold numbers denote maximum EEC values.

2 A = aerial application, G = ground application.

4.2. Terrestrial Exposure

In past assessments there was not a risk concern for mammals or birds even assuming a single 

application at an annual maximum rate of 0.2 lb ai/A (e.g. DP 397575+). Therefore, there is not 

a risk concern for the proposed peanut use given the same annual maximum rate; terrestrial 

exposure was not estimated.

However, exposure was estimated for uses with multiple crop seasons. As a screen, two methods 

and sets of assumptions were used to calculate EECs which are intended solely to capture a range 

of possible exposure scenarios. (1) Plants may accumulate chlorantraniliprole residues from 

season to season to the extent that previously treated plant material remains on or off the field. 

As a screen, EECs were calculated in T-REX (v 1.5)1for multiple crop seasons making the 

assumption that the same plant material is treated season after season (for example, see Table 4

for the crop scenario resulting in the highest EECs). (2) EECs for subsequent crop seasons are 

expected to increase over the EECs based on a single crop season even if previously treated plant 

material is completely removed from the field given that chlorantraniliprole is persistent in soil 

and that the Coragen label indicates that the product is translocated into the above ground 

portions of plants after soil applications. Carryover residues could come from either past soil or 

foliar applications. The Briggs model was used as a conservative screening estimate of exposure 

due to systemic transport into plant material (details and equations provided in White Paper in 

Support of the Proposed Risk Assessment Process for Bees, September 11 – 14, 2012). For this 

screening analysis, it was assumed that estimated concentrations would occur throughout a plant. 

The EEC (0.299 mg/kg plant material) was based on an application rate of 0.6 lb ai/A (a 

 

1 www.epa.gov/oppefed1/models/terrestrial/index.htm
10

maximum of three crop seasons after the initial crop season), log Kow = 2.77, and Koc = 328 

L/kgoc. 

Table 4. Screening Terrestrial Food-Item Residue Estimates for Mammals and Birds for 

Multiple Crop Seasons of Foliar Applications of Chlorantraniliprole1

Size 

Class

(grams)

Dietary and Dose-Based EECs2

Short Grass Tall Grass Broadleaf 

Plants

Fruits/Pods/

Seeds Arthropods

Mammals

Dose-Based EECs

15 112.74 51.67 63.41 7.05 44.15

35 77.92 35.71 43.83 4.87 30.51

1000 18.07 8.28 10.16 1.13 7.07

Dietary-Based EECs3

NA 118.24 54.20 66.51 7.39 46.31

Avian

Dose-Based EECs

20 134.67 61.72 75.75 8.42 52.75

100 76.79 35.20 43.20 4.80 30.08

1000 34.38 15.76 19.34 2.15 13.47

Dietary-Based EECs3

NA 118.24 54.20 66.51 7.39 46.31

1

0.098 lb ai/A, 2 applications at 3 day intervals per season (4 seasons with 14 days between the last and first 

application of sequential seasons). For consistency, application intervals are the same as those used for aquatic 

modeling

2 Based on default foliar dissipation half-life of 35 days 

3

Size class not used for dietary EECs

EECs for terrestrial plants were determined in past assessments for the proposed application rates 

(e.g., DP 338512 and DP 397575+). 

5. Fate and Transport and Ecological Effects Summary 

Fate and toxicity data used for this risk assessment has not changed since the last assessment (DP 

404738+). A detailed description of fate and transport properties can be found in the 

comprehensive drinking water assessment (DP 348133) dated 10 January 2008 and a detailed 

description of toxicity data can be found in the 2007 (DP 338512), 2011 (DP 377697+), and 

2012 (DP 397575+) risk assessments.

6. Incidents

Reviews were conducted of the Ecological Incident Information System (EIIS, version 2.1.1)2, 

the Agency’s Aggregated Incidents Reports database, and the Avian Incident Monitoring System 

(AIMS)3on November 26, 2013. No incidents were reported in AIMS. One incident was 

 

2

http://www.epa.gov/espp/consultation/ecorisk-overview.pdf

3

http://www.abcbirds.org/abcprograms/policy/toxins/aims/aims/index.cfm
11

reported in EIIS involving foraging bee mortality from direct spray in an orchard (it is not clear 

if the bees were directly sprayed); the product was not identified and the certainty of causation is 

unlikely. One minor wildlife incident was reported for one of the assessed products (Coragen®) 

as well as another chlorantraniliprole containing product (Dupont DERMACOR X-100 Insect 

Control) in the aggregated incident database. In addition, one “other non-target” species (i.e., 

not coded as plants or wildlife) incident was reported for Altacor®(the product with proposed 

commodity additions to already labeled crop groups) in the aggregated incident database. 

Several minor plant incidents were reported in the aggregated incident database for a 

chlorantraniliprole containing product (Grubex) other than those considered in this assessment

and one incident for application of chlorantraniliprole and sulfentrazone (product(s) not 

identified). There was also one plant incident involving Grubex in the EIIS database (> 45% 

effects on plants for a residential application – certainty of causation is possible).

7. Ecological Risk

7.1. Terrestrial Organisms

There is not a risk concern for birds or mammals for the use on peanut or for the assessed 

multiple crop season uses.

Terrestrial Invertebrates

As in past assessments, a risk concern for terrestrial invertebrates cannot be precluded. The 

Agency currently does not have a quantitative method to assess risks of pesticides to non-target 

terrestrial invertebrates. However, it is a reasonable assumption that an insecticide would pose 

some direct risk to non-target terrestrial invertebrates, including insects. Second, compared to 

the proposed application rates (0.065 - 0.099 lb ai/A single maximum rate; 0.2 - 0.8 lb ai/A 

annual rate), available toxicity data suggest potential direct effects to at least some non-target 

insects (e.g., LR50 for mortality was < 0.067 lb ai/A for hoverfly). 

Terrestrial Plants

The LOC (1.0) was not exceeded for non-listed or listed monocots located in dry or semi-aquatic 

locations or from spray drift (RQs < 0.1) in previous assessments of the same application rates. 

Toxicity has not been defined for dicots (EC25 undetermined and NOEC < 0.0167 lb/A in the 

available Tier II seedling emergence study). At this time, risk cannot be precluded for dicots 

(listed and non-listed). There is not a risk concern for monocots from the proposed use on 

peanut or the assessed multiple crop season uses.

7.2. Aquatic Organisms

There is not a risk concern for fish (freshwater and marine/estuarine) or aquatic plants (vascular 

and non-vascular) for the proposed use on peanut or for the assessed multiple crop season uses.
12

Aquatic Invertebrates

The acute listed species LOC (0.05) was exceeded for freshwater (RQ = 0.34) and 

marine/estuarine invertebrates (RQ = 0.09) for use on peanut. For all crops with multiple crop 

seasons, the acute listed species LOC was exceeded for freshwater (RQ = 0.85-3.1) and 

marine/estuarine invertebrates (RQ = 0.25-0.91)4. There is also an acute risk concern for nonlisted aquatic invertebrate species (LOC = 0.5) for all multiple crop season uses except 

strawberry (non-listed acute LOC was not exceeded for marine/estuarine invertebrates).

There is not a chronic risk concern for aquatic invertebrates for use on peanut. However, the 

chronic LOC (1.0) was exceeded for use on crops with multiple crop seasons: freshwater 

invertebrate chronic RQ = 2.2 - 8.14and marine/estuarine chronic RQ = 0.4 - 1.54. There is a 

chronic risk concern for aquatic invertebrates for all multiple crop season uses except strawberry

(chronic LOC was not exceeded for marine/estuarine invertebrates).

8. Endangered and Threatened Species 

Table 5 summarizes potential concerns for direct and indirect effects to federally-listed 

threatened and endangered species (i.e., listed species).

Table 5. Potential Effects to Federally Listed Taxa

Listed Taxa Direct Effects Indirect Effects

Terrestrial and semi-aquatic plants -

monocots No Yes2

Terrestrial and semi-aquatic plants - dicots Yes1 Yes2

Terrestrial invertebrates Yes Yes2,5

Birds No Yes2,3,4,5

Terrestrial-phase amphibians No Yes2,3,4,5

Reptiles No Yes2,3,4,5

Mammals No Yes2,3,4,5

Aquatic vascular plants No Yes2,3,4,5

Freshwater fish No Yes3,5

Aquatic-phase amphibians No Yes3,5

Freshwater invertebrates Yes Yes3,5

Marine/estuarine fish No Yes4,5

Marine/estuarine invertebrates Yes Yes4,5

1

insufficient data to preclude risk 

2 direct effects on terrestrial invertebrates 

3 direct effects on freshwater invertebrates (listed and non-listed)

4 direct effects on estuarine/marine invertebrates (listed and non-listed)

5

direct effects on terrestrial dicots (listed and non-listed species)

 

4 Range is maximum RQ for each of the uses.
13

Appendix 1. Representative Model Output

stored as MEPotatoAeco.out

Chemical: Chlorantraniliprole

PRZM environment: MEpotatoSTD.txt modified Tueday, 29 May 2007 at 13:56:18

EXAMS environment: pond298.exv modified Tueday, 26 August 2008 at 06:14:07

Metfile: w14607.dvf modified Tueday, 26 August 2008 at 06:14:52

Water segment concentrations (ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly

1961 5.98 5.94 5.53 4.19 3.56 0.92

1962 13.22 13.16 13.03 12.26 10.32 6.73

1963 19.55 19.47 19.28 18.69 16.76 13.45

1964 23.04 22.98 22.09 21.33 20.25 18.42

1965 22.87 22.82 22.62 22.27 22.06 20.87

1966 24.84 24.80 24.60 24.34 22.94 20.95

1967 25.19 25.14 24.94 24.21 23.76 23.09

1968 29.58 29.52 29.27 28.07 26.80 25.42

1969 31.04 30.98 30.60 29.60 28.59 27.77

1970 30.93 30.87 30.71 30.55 30.44 29.40

1971 32.08 32.03 31.80 31.26 30.85 29.44

1972 30.23 30.19 30.14 29.98 29.78 28.49

1973 32.67 32.58 31.34 30.65 30.42 28.63

1974 32.31 32.24 31.95 31.71 31.57 29.90

1975 31.38 31.32 31.09 30.57 30.35 28.68

1976 32.15 32.10 32.00 31.79 30.91 29.32

1977 34.08 34.04 33.89 33.48 33.14 31.39

1978 34.08 34.02 33.81 33.40 33.18 31.55

1979 35.25 35.19 35.00 34.69 34.31 31.98

1980 33.30 33.25 33.04 32.63 32.45 30.95

1981 34.19 34.13 33.90 33.65 33.42 31.44

1982 34.67 34.61 34.33 33.56 32.03 31.12

1983 37.78 37.67 37.27 35.06 34.51 33.14

1984 36.71 36.66 36.53 36.07 35.95 33.92

1985 33.53 33.49 33.31 32.75 32.46 31.00

1986 35.87 35.79 35.50 34.87 34.59 32.64

1987 34.76 34.69 34.40 33.76 33.28 31.37

1988 35.08 35.02 34.72 34.12 33.64 31.84

1989 34.80 34.72 34.43 33.93 33.48 31.45

1990 36.16 36.09 35.72 35.14 33.87 31.18

Sorted results

Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly

0.03 37.78 37.67 37.27 36.07 35.95 33.92

0.06 36.71 36.66 36.53 35.14 34.59 33.14

0.10 36.16 36.09 35.72 35.06 34.51 32.64

0.13 35.87 35.79 35.50 34.87 34.31 31.98

0.16 35.25 35.19 35.00 34.69 33.87 31.84

0.19 35.08 35.02 34.72 34.12 33.64 31.55

0.23 34.80 34.72 34.43 33.93 33.48 31.45

0.26 34.76 34.69 34.40 33.76 33.42 31.44

0.29 34.67 34.61 34.33 33.65 33.28 31.39

0.32 34.19 34.13 33.90 33.56 33.18 31.37

0.35 34.08 34.04 33.89 33.48 33.14 31.18

0.39 34.08 34.02 33.81 33.40 32.46 31.12

0.42 33.53 33.49 33.31 32.75 32.45 31.00

0.45 33.30 33.25 33.04 32.63 32.03 30.95

0.48 32.67 32.58 32.00 31.79 31.57 29.90

0.52 32.31 32.24 31.95 31.71 30.91 29.44

0.55 32.15 32.10 31.80 31.26 30.85 29.40

0.58 32.08 32.03 31.34 30.65 30.44 29.32

0.61 31.38 31.32 31.09 30.57 30.42 28.68

0.65 31.04 30.98 30.71 30.55 30.35 28.63

0.68 30.93 30.87 30.60 29.98 29.78 28.49

0.71 30.23 30.19 30.14 29.60 28.59 27.77

0.74 29.58 29.52 29.27 28.07 26.80 25.42

0.77 25.19 25.14 24.94 24.34 23.76 23.09

0.81 24.84 24.80 24.60 24.21 22.94 20.95

0.84 23.04 22.98 22.62 22.27 22.06 20.87

0.87 22.87 22.82 22.09 21.33 20.25 18.42

0.90 19.55 19.47 19.28 18.69 16.76 13.45

0.94 13.22 13.16 13.03 12.26 10.32 6.73

0.97 5.98 5.94 5.53 4.19 3.56 0.92

0.10 36.13 36.06 35.70 35.04 34.49 32.57

Average of yearly ave26.rage88 s:
14

Inputs generated by pe5.pl - Novemeber 2006

Data used for this run:

Output File: MEPotatoAeco

Metfile: w14607.dvf

PRZM scenario: MEpotatoSTD.txt

EXAMS environment file: pond298.exv

Chemical Name: Chlorantraniliprole

Description Variable NameValue Units Comments

Molecular weight mwt 483.15 g/mol

Henry's Law Const. henry 9.76E-14 atm-m^3/mol

Vapor Pressure vapr 1.57E-13 torr

Solubility sol 1.023 mg/L

Kd Kd mg/L

Koc Koc 330 mg/L

Photolysis half-life kdp 32.8 days Half-life

Aerobic Aquatic Metabolism kbacw 341 days Halfife

Anaerobic Aquatic Metabolism kbacs 624 days Halfife

Aerobic Soil Metabolism asm 627 days Halfife

Hydrolysis: pH 7 0 days Half-life

Method: CAM 2 integer See PRZM manual

Incorporation Depth: DEPI cm

Application Rate: TAPP 0.075 kg/ha

Application Efficiency: APPEFF 0.95 fraction

Spray Drift DRFT 0.05 fraction of application rate applied to pond

Application Date Date 17-09 dd/mm or dd/mmm or dd-mm or dd-mmm

Interval 1 interval 3 days Set to 0 or delete line for single app.

app. rate 1 apprate 0.075 kg/ha

Interval 2 interval 3 days Set to 0 or delete line for single app.

app. rate 2 apprate 0.075 kg/ha

Interval 3 interval 14 days Set to 0 or delete line for single app.

app. rate 3 apprate 0.075 kg/ha

Interval 4 interval 3 days Set to 0 or delete line for single app.

app. rate 4 apprate 0.075 kg/ha

Interval 5 interval 3 days Set to 0 or delete line for single app.

app. rate 5 apprate 0.075 kg/ha

Interval 6 interval 14 days Set to 0 or delete line for single app.

app. rate 6 apprate 0.075 kg/ha

Interval 7 interval 3 days Set to 0 or delete line for single app.

app. rate 7 apprate 0.075 kg/ha

Interval 8 interval 3 days Set to 0 or delete line for single app.

app. rate 8 apprate 0.075 kg/ha

Interval 9 interval 14 days Set to 0 or delete line for single app.

app. rate 9 apprate 0.075 kg/ha

Interval 10 interval 3 days Set to 0 or delete line for single app.

app. rate 10 apprate 0.075 kg/ha

Interval 11 interval 3 days Set to 0 or delete line for single app.

app. rate 11 apprate 0.075 kg/ha

Record 17: FILTRA

IPSCND 3

UPTKF

Record 18: PLVKRT

PLDKRT

FEXTRC 0.5

Flag for Index Res. Run IR EPA Pond

Flag for runoff calc. RUNOFF none none, monthly or total(average of entire run)