UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 

WASHINGTON, D.C. 20460 

MAY 1 6 2016 

MEMORANDUM 

OFFICE OF CHEMICAL SAFETY 

AND POLLUTION PREVENTION 

SUBJECT: Clofentezine (125501) Typical Application Rate for Grapes to Support HED's 

Occupational Risk Assessment, DP # 433503 

FROM: AJ .C\ , Cynthia 

Science Information 

Doucoure, Environmental 

and Analysis Branch 

Protection Specialist (; ~ 

Biological and Economic Analysis Division (7503P) 

THRU: Diann 

Science 

Sims, 

Information 

Chief ~ and Analysis Branch 

Biological and Economic Analysis Division (7503P) 

TO: Andy Ertman, Risk Manager Reviewer 

Registration Division (7505P) 

SUMMARY 

Through this memo, BEAD is providing the typical application rate for grapes to support the 

refmement ofHED's occupational risk assessment. According to HED, there are occupational 

post-application cancer risk concerns for grapes (wine, table, and raisin) related to hand 

harvesting. Based on available Market Research Data, BEAD recommends using 0.2 lb ai./ A as 

the typical application rate for clofentezine use grapes to support refinement of the HED 

occupational risk assessment. 

CLOFENTEZINE USAGE 

BEAD reviewed public and proprietary Market Research Data sources to obtain typical 

application rate information for clofentezine use on grapes. BEAD found that, based on the 

Market Research Data, the overall typical application rate for clofentezine use on grapes is 0.2 lb 

a.i./A as shown in Table 1 below. BEAD compared the clofentezine typical application rates for 

grapes from the Market Research Data with the California Department of Pesticide Regulation 

(DPR) median application rates for clofentezine use on grapes and found that they are similar as 

shown below in Table 2. BEAD also reviewed USDA National Agricultural Statistics Service 

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(NASS) data, which showed usage of clofentezine on wine grapes for the years 2009 and 2011 

but the data was withheld to avoid disclosing data for individual farms. 

T a bl e 1 Cl o £ en t ezme . U seon Ora lpes: T . . YJ)lC alA I" ti R t 2006 2014 ·~ p11ca on a es, - Crop AvgA.LRate Avg Lb AI Applied Percent Crop 

(lbaJJA) Treated(%) 

Grapes, Wine 0.2 1,295 <2.5 

Grapes, Raisin 0.2 200 <1 

Grapes, Wine & Raisin 0.2 750 <2.5 

Source: Market Research Data, 2006-2014. Averages have been rounded to the nearest tenth. 

T a bl e 2 Cl o £ enezme t . U seon Gra lpes: M e di an A pp11ca 1' ti on Rate s, 2006 -2014 

Gnoe* WiDeGnoe 

Year MediuRate MediaD Rate 

(lbaJJA) (lbaJJA) 

2013 0.2 0.2 

2012 03 0.2 

2011 0.2 0.2 

2010 0.2 0.2 

2009 0.3 0.2 

2008 0.2 0.1 

2007 0.2 0.3 

2006 0.3 0.2 

Averag_e 0.2 0.2 . . Source: Cahforrua DPR Pestlctde Use Data, 2006-2014. Median values have been rounded to the nearest tenth . 

*Grapes= tables grapes grown for fresh market, raisins, canning, or juicing. 

RECOMMENDATION 

Based on the available clofentezine typical/median application rate data from Market Research 

Data and California DPR, BEAD recommends using 0.2lb a.i./A as the typical application rate 

for clofentezine use on grapes to support refinement of the HEO occupational risk assessment. 

REFERENCES 

California Department of Pesticide Regulation (DPR) Pesticide Use Data. 2006-2014 

Market Research Data. 2006-2014. Data collected and sold by a private market research 

finn. Data collected on pesticide use for about 60 crops by annual surveys of agricultural 

users in the continental United States. Survey methodology provides statistically valid 

results, typically at the state level. 

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US Department of Agriculture (USDA) National Agricultural Statistics Service (NASS). 2012b. 

Agricultural Chemical Usage, Fruit Crops 2009 and 20 11. 

cc: W. Livingston 

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