Information Requests Monitoring System

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Request ID: 147
Request From: Steve Toth
Date Requested: Mar 10, 2006
Request: Note the following request for information on the use of malathion on ocra. Please circulate among the experts in your state/territory and send their responses to the Southern Region IPM Center Information Responses Monitoring System within the next week. Thanks. Steve Toth ------------------------------------------------- EPA is proposing to lower the use of malathion on okra from the maximum supported rate of 1.5 lb a.i./A x 6 applications x 7 day retreatment interval EPA believes the typical application rate used by growers is 1.2 lb ai/A x 4.8 applications x 7 day retreatment interval To reduce possible exposure to drinking water, EPA's mitigation proposal is: an maximum application rate of 1.2 lb ai/A x 5 applications x 7 day retreatment interval. Would this be acceptable to okra gowers? If this proposal is a problematic for okra growers, USDA will explore okra fields are situated near surface water bodies used for drinking water and if Texas sorghum is an appropriate surrogates for okra fields, the mitigating effects of buffers next to water bodies, etc. EPA believes the production states for okra include: AL, FL, GA, and TX. Please let me know your thoughts in the next week. EPA is slowly working its way through a list of 20 crops with the highest usage of malathion. Then we go onto Group 2 and Group 3 crops. Thanks again for your assistance: Please do not hesitate to contact me if you have any questions or comments. Best regards, Teung Soybean Rust Info http://www.usda.gov/soybeanrust/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Teung F. Chin, Ph.D. Biological Scientist Office of Pest Management Policy Agricultural Research Service United States Department of Agriculture LOCATED AT: USDA Animal & Plant Health Inspection Service 4700 River Road, Unit 149 (Room 3D-06.8) Riverdale, MD 20737-1237 Phone (301) 734-8943 Fax (301) 734-5992 Teung.F.Chin@usda.gov http://www.ars.usda.gov/opmp

Responses
Responder: Darrell Hensley
State: KY
Date Requested: Mar 13, 2006
Not Important/Relevant to my state(s)
Response: Forwarded from Ric Bessin at UKY Darrell, We don't have much okra grown here, commercially that is. Ric Bessin RE: Okra - Malathion usage This is a request for information forwarded from Steve Toth Note for information on the use of malathion on okra. Send responses to the Southern Region IPM Center Information Responses Monitoring System within the next week please.

Responder: Mark Mossler
State: FL
Date Requested: Mar 14, 2006
Response: Based on the crop profile, the PMSP, and inquiries to growers, scouts, and Extension agents, the proposed modifications for okra/malathion would not prove burdensome to FL growers.

Responder: Mark Mossler
State: PR
Date Requested: Mar 14, 2006
Response: Malathion is registered in okra in PR. Based on profiles and PMSP's the proposed modification for use should not impact PR okra growers.

Responder: Mark Mossler
State: VI
Date Requested: Mar 14, 2006
Response: Based on profiles and PMSPs, the label modifications should not affect VI okra growers.

Responder: Ples Spradley
State: AR
Date Requested: Mar 14, 2006
Response: The following response is from Dr. Craig Andersen, Extension Horticulturist - Vegetables, Dept. of Horticulture, Univ. of Arkansas: Any commercial okra growers that we have are located in eastern Arkansas. Thje rest would be small market garden growers selling at farmers markets. I do not see that this change would cause any undo hardship on the growers. However, any further changes would be problematic because the insecticides used on okra a very limited.

Responder: Charles Luper
State: OK
Date Requested: Mar 14, 2006
Response: Very little if any okra grown commercially in Oklahoma. I do not see this have a big impact on Oklahoma.

Responder: Tom Kuhar
State: VA
Date Requested: Mar 15, 2006
Response: Regarding the malathion elimination on okra, I don't deal with that crop at all in Virginia, but I don't think any pyrethroids are labeled on it, and the loss of malthion would leave only carbaryl as a broad-spectrum insecticide on the crop. Aphid and Japanese beetle control might be problem, unless growers used Admire as a drench (which is expensive). Tom Kuhar Virginia Tech University

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