JOB/C600 

Chemtura Corporation 

199 Benson Road 

Middlebury, CT 06749 

203-573-2454 tel

203-573-2958 fax

www.chemtura.com

July 18, 2014 

Environmental Protection Agency 

Document Processing Desk 

Office of Pesticide Programs (7504P)

One Potomac Yard (South Building) 

2777 S. Crystal Drive 

Arlington, VA 22202 

 Attention: Mr. Steven Snyderman, Chemical Review Manager 

 Risk Management and Implementation Branch III 

Subject: Triflumizole Registration Review - Letter of Intent for 

400-518 Procure® 480SC, 400-521Terraguard® SC, 

400-535 Terraguard® SC/LS 

Dear Mr. Snyderman, 

This letter serves as Chemtura Corporations ‘Letter of Intent’ to confirm that Chemtura 

intends to amend the above cited labels per the following attached tables as agreed 

upon in our telephone conference on July 16, 2014. 

 “Table I. Triflumizole Alternate Application Scenarios-Agreed Upon Mitigation 

Measures/Label Changes for Risk Quotient Reduction”. The agreed upon 

mitigation measures for each crop are shown on the green-shaded rows. 

 “Table 2. Triflumizole Occupational Exposure – Agreed Upon Mitigation 

Measures/Label Changes for Exposure Reduction”. Agreed upon new mitigation 

measures, as stipulated in the revised Human Health Risk Assessment, dated 

June 5, 2014, provided to Chemtura on July 16, 2014, are shown in red font. To 

summarize the labels will include adding chemical resistant hat to the PPE for 

applicators using open cab airblast equipment in pome fruit and cherries. The 

Reentry interval for all activities is 12 hours except 1 day for grape girdling table 

and wine grapes and 3 days for hop mechanical harvesting (included within the 7 

day pre-harvest interval). 

If you have any questions regarding this letter, please contact Judy Ball, Registration 

Specialist, at 203-573-2454 or e-mail judy.ball@chemtura.com. 

 Sincerely, 

 CHEMTURA CORPORATION 

 

 Allen R. Blem 

 Product Registrations Manager, N. America

.
JOB/C600 

Procure Crops

Max. Rate Procure

480SC per

Application

(lbs.ai./A)

Max. no. of

Appls. /

Crop / Yr.

Max. Appl. Rate

Procure 480SC per

Acre per Year(lbs.

ai./A/yr.)

Min. RTI

(days)

Upper

Calculated

RQ*

Average

Calculated

RQ* Alternate Scenario Comm

16 fl.ozs. (0.5) 4 64 fl.ozs. (2.0) 7 45.52 16.1 Current Label Scenario

16 fl.ozs. (0.5) 4 56 fl.ozs. (1.75) 14/21/14 28.82 10.21 New Chemtura Scenarios submitted July 201416 fl.ozs. (0.5) 6 96 fl.ozs. (3.0) 7 58.00 20.54 Current Label Scenario16 fl.ozs. (0.5) 4 56 fl.ozs. (1.75) 14/21/14 28.82 10.21 New Chemtura Scenario submitted July 20148 fl.ozs. (0.25) 4 32 fl.ozs. (1.0) 14 18.22 6.45 Current Label Scenario

8 fl.ozs. (0.25) 4 32 fl.ozs. (1.0) 14 18.22 6.45 No change from current labeling

8 fl.ozs. (0.25) 4 32 fl.ozs. (1.0) 14 18.22 6.45 Current Label Scenario

8 fl.ozs. (0.25) 4 32 fl.ozs. (1.0) 14 18.22 6.45 No change from current labeling

8 fl.ozs. (0.25) 5 40 fl.ozs. (1.25) 7 26.18 9.27 Current Label Scenario

8 fl.ozs. (0.25) 3 24 fl.ozs. (0.75) 7 18.61 6.59 3 applications @ 8 fl.ozs. (0.25 lbs. ai.)/A

6 fl.ozs. (0.1875) 4 24 fl.ozs. (0.75) 7 17.07 6.05 4 applications @ 6 fl.ozs. (0.1875 lbs.ai.)/A

8 fl.ozs. (0.25) 2.25 18 fl.ozs. (0.563) 14 15.90 5.63 Current Label Scenario

8 fl.ozs. (0.25) 2 16 fl.ozs. (0.5) 14 12.48 4.42 2 applications @ 8 fl.ozs. (0.25 lbs.ai.)/A @ 14 days

8 fl.ozs. (0.25) 2.25 18 fl.ozs. (0.563) 14 15.90 5.63 Current Label Scenario

8 fl.ozs. (0.25) 2 16 fl.ozs. (0.5) 14 12.48 4.42 2 applications @ 8 fl.ozs. (0.25 lbs.ai.)/A @ 14 days

8 fl.ozs. (0.25) 2.25 18 fl.ozs. (0.563) 14 15.90 5.63 Current Label Scenario

8 fl.ozs. (0.25) 2 16 fl.ozs. (0.5) 14 12.48 4.42 2 applications @ 8 fl.ozs. (0.25 lbs.ai.)/A @ 14 days

6 fl ozs. (0.1875) 4 24 fl.ozs. (0.75) 10 15.44 5.47 Current Label Scenario

6 fl ozs. (0.1875) 2 12 fl.ozs. (0.375) 10 9.8 3.47 2 applications @ 6 fl.ozs. (01875 lbs.ai.)/A @ 10 days

12 fl ozs. (0.375) 3 36 fl. ozs. (1.125) 14 23.85 8.45 Current Label Scenario

12 fl ozs. (0.375) 2 24 fl.ozs. (0.75) 14 18.72 6.63 2 applications @ 12 fl.ozs. (0.375 lbs.ai.)/A @ 14 days

10 fl.ozs. (0.3125) 2.4 24 fl.ozs. (0.75) 14 19.88 7.04 Current Label Scenario (RQ using upper bound Kenega 

applications vs. actual label max of 2.25)

8 fl.ozs. (0.25) 1 8 fl.ozs. (0.25) NA 7.44 2.63 RTI is no longer applicable with proposed reduction to 

0.25 / 100 gals. 1 0.25 / 100 gals. NA NA NA Current Label Scenario

0.25 / 100 gals. 1 0.25 / 100 gals. NA NA NA No change from current label, as no mammalian risk fr

64 fl.ozs. (2.0)** NS > 96 fl.ozs. (3.0) 7 > 74.42  ‐ Current Label Scenario (RQ using upper bound Kenega 

applications @ 1.0 lb.ai./A vs. actual label of 12 applica

16 fl.ozs. (0.5)*** 2 32 fl.ozs. (1.0)*** 14 24.96 8.84 2 applications @ 16 fl.ozs. (0.5 lbs.ai.)/A @ 14 days

8 fl.ozs. (0.25)*** 4 32 fl.ozs. (1.0)*** 14 18.22 6.45 4 appls. @ 8 fl.ozs. (0.25 lbs.ai.)/A @ 14 days

32 fl.ozs. (1.0)** NS 96 fl.ozs. (3.0) 7 > 74.42  ‐ Current Label Scenario (RQ using upper bound Kenega 

applications @ 1.0 lb.ai./A vs. actual label of 12 applica

16 fl.ozs. (0.5)*** 2 32 fl.ozs. (1.0)*** 14 24.96 8.84 2 applications @ 16 fl.ozs. (0.5 lbs.ai.)/A @ 14 days

8 fl.ozs. (0.25)*** 4 32 fl.ozs. (1.0)*** 14 18.22 6.45 4 appls. @ 8 fl.ozs. (0.25 lbs.ai.)/A @ 14 days

* Calculated RQs for alternate scenarios are listed only forsmall mammal/short grass, as this is the most conservative value

** Assumes maximum spray volume of 400 GPA as allowed by the label

*** Assumes drop in application rate from 16 fl.ozs./100 gals. @ 400GPA to 8 fl.ozs./100 gals. @ 200GPA max.

Denotes alternate use scenarios proposed on draft labeling to EPA, e.g., reduction in max. application rates, reduction in max. no. of applications, or increases in RTI vs. current labe

Ornamentals (Tguard SC)Ornamentals (Tguard SC/LS)

Table 1: TRIFLUMIZOLE ALTERNATE APPLICATION SCENARIOS ‐ AGREED UPON MITIGATION MEASURES / LABEL CHANGES FOR RISK QUOTIENT R

Pome Fruit Crop Group 11‐10(Apple, pear)CherryCurcurbitsGrapeStrawberryBrassica Leafy Greens

Pineapple (dip application)

Head & Stem Brassica

Leafy Greens (ex. spinach)

Filbert / Hazelnut

HopsPapaya, Mango +
JOB/C600 

Triflumizole Labeled Crops Current PPE New Proposed PPE Current REI 

Pome Fruit Crop Group 11‐10

(Apple, pear)

Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks; chemical resistant hat for applicators

using open cab air blast equipment

12 hours 

Cherry Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks; chemical resistant hat for applicators

using open cab air blast equipment

12 hours 

Grape Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours

Strawberry Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Curcurbits Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Brassica Leafy Greens Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Head & Stem Brassica Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Leafy Greens (ex. spinach) Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Filbert / Hazelnut Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Hops Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours

Papaya, Mango + Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Pineapple (dip application) Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Ornamentals Long‐sleeved shirt & long pants; chemical

resistant gloves made of any waterproof

materials; shoes plussocks

Long‐sleeved shirt & long pants; chemical resistant

gloves made of any waterproof materials; shoes

plussocks

12 hours 

Table 2: TRIFLUMIZOLE OCCUPATIONAL EXPOSURE ‐ AGREED UPON MITIGATION MEASURES / LABEL CHANGES FOR EXP