Document ID: EPA-HQ-OPP-2010-0119-0005
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2010-03-31T04:00Z

Chlorpyrifos-Methyl’s Use on Stored Grains (Corn and Wheat):  Checking
our available data sources, both proprietary (Kline, 2004) and (NASS,
1999 and 2002) data, almost 110,000 pounds of Chlorpyrifos-Methyl was
used on stored grains, on-farm (35,000 Lbs.) and off-farm (75,000 Lbs.).
 This amounted to 6 percent of the stored-grain insecticide market.  The
2004 proprietary data showed that the leading active ingredient is
Aluminum Phosphide with 43 percent of the market, followed by
Diatomaceous Earth (28%), and Malathion (15%).  For Wheat, the only NASS
Post-Harvest data are about 11,000 Lbs. of Chlorpyrifos-Methyl used in
1999, and almost 19,000 Lbs. used in 2002.  There were no NASS
post-harvest data on corn during these two years (1999 and 2002). 

 

Proprietary Data Used:

THE U.S. MARKET FOR STORED GRAIN INSECTICIDES 2004 

Public Data Links Used : 

Agricultural Chemical Usage – Postharvest Applications – Corn and
Wheat (March 1999):

  HYPERLINK
"http://usda.mannlib.cornell.edu/usda/nass/AgriChemUsPostHarv//1990s/199
9/AgriChemUsPostHarv-03-18-1999_Corn%20and%20Wheat.pdf" 
http://usda.mannlib.cornell.edu/usda/nass/AgriChemUsPostHarv//1990s/1999
/AgriChemUsPostHarv-03-18-1999_Corn%20and%20Wheat.pdf  

Agricultural Chemical Usage – Postharvest Applications – Wheat
(March 2002):

  HYPERLINK
"http://usda.mannlib.cornell.edu/usda/nass/AgriChemUsPostHarv//2000s/200
2/AgriChemUsPostHarv-03-13-2002_Wheat.pdf" 
http://usda.mannlib.cornell.edu/usda/nass/AgriChemUsPostHarv//2000s/2002
/AgriChemUsPostHarv-03-13-2002_Wheat.pdf