Information Requests Monitoring System

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Request ID: 195
Request From: Steve Toth
Date Requested: Nov 13, 2009
Request: Steve: FYI. Please do not hesitate to contact me if you have any questions or comments. Best regards, Teung ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Teung F. Chin, Ph.D. Acting Director Office of Pest Management Policy Agricultural Research Service United States Department of Agriculture LOCATED AT: 1400 Independence Avenue, S.W. Room 3871 - South Bldg. Mail Stop 0315 Washington DC, 20250-0315 Phone (202) 720-5375 Fax (202) 720-3191 Teung.F.Chin@usda.gov http://www.ars.usda.gov/opmp ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ----- Forwarded by Teung F Chin/MD/APHIS/USDA on 11/10/2009 03:46 PM ----- Kaul.Monisha@epamail.epa.gov 11/10/2009 03:33 PM To ahammond@agctr.lsu.edu cc Teung.F.Chin@aphis.usda.gov Subject Questions about endosulfan use on sweet potato Dr. Hammond, EPA is currently reviewing possible increases in the REI for endosulfan in sweet potatoes production. I have found limited efficacy and use information and I'm hoping you can answer a few questions. We have found that most endosulfan use targets the sweet potato weevil and is generally applied early in the season to plant beds. Are there worker activities (such as bed maintenance) that are required at this time? If so, how often are these activities needed at a minimum? Is endosulfan still being used and recommended in LA? Are there alternatives as or more effective than endosulfan (bifenthrin; methyl parathion)? Is this the current pest management recommendation for sweet potato production in LA: http://www.lsuagcenter.com/en/crops_livestock/crops/sweet_potatoes/Insect +Pest+Management+in+Louisiana+Sweet+Potatoes.htm ? Finally, do you happen to have similar information for MS? If not, would you have a contact for someone in MS? Thank you for your time. Monisha ------------------------------------------------------------------ Monisha Kaul Biological and Economic Analysis Division Office of Pesticide Programs US Environmental Protection Agency 703-308-0098 ------------------------------------------------------------------

Responses
Responder: Darrell Hensley
State: TN
Date Requested: Nov 16, 2009
Response: Enosulfan is not recommended for sweetpotato in Tennessee nor in any of the other states participating in the Southeastern U.S. Vegetable Crop Handbook. If sweetpotato weevil is a problem, the regional Handbook recommends Baythroid XL and Imidan 70 WSP. Regards, Frank A. Hale

Responder: Mark Matocha
State: TX
Date Requested: Nov 23, 2009
Response: Texas sweet potato growers typically do not use endosulfan for weevil control. Methyl parathion under a 24(c) label is the insecticide most commonly used for this pest in Texas. Comments from Dr. Allen Knutson, Extension Entomologist, Dallas, Texas.

Responder: Mark Mossler
State: FL
Date Requested: Nov 25, 2009
Response: While no responses have been obtained from FL, PR or the VI (read not commercially grown) a large sweetpotato grant has recently been awarded to cooperators in LA and MS. Contacts would be Dr. Mark Shankle - MSU Shankle@ra.msstate.edu or Arthur Villordon - LSU AVillordon@agcenter.lsu.edu

Responder: Mark Mossler
State: VI
Date Requested: Nov 25, 2009
Response: While no responses have been obtained from FL, PR or the VI (read not commercially grown) a large sweetpotato grant has recently been awarded to cooperators in LA and MS. Contacts would be Dr. Mark Shankle - MSU Shankle@ra.msstate.edu or Arthur Villordon - LSU AVillordon@agcenter.lsu.edu

Responder: Mark Mossler
State: PR
Date Requested: Nov 25, 2009
Response: While no responses have been obtained from FL, PR or the VI (read not commercially grown) a large sweetpotato grant has recently been awarded to cooperators in LA and MS. Contacts would be Dr. Mark Shankle - MSU Shankle@ra.msstate.edu or Arthur Villordon - LSU AVillordon@agcenter.lsu.edu

Responder: Patty Lucas
State: KY
Date Requested: Nov 30, 2009
Response: There are very few sweet potato growers in Kentucky and at this time Entomologist are not aware of endosulfan being used in their production.

Responder: Mark Abney
State: NC
Date Requested: Nov 30, 2009
Response: I am not aware of much endosulfan use in North Carolina sweetpotatoes. The only pests on the label are sweetpotato flea beetle, sweetpotato weevil, and whitefly. There are certainly alternatives for flea beetle and whitefly, and we do not (hopefully) have the weevil. I see no need for comment from North Carolina on this matter. Thanks for bringing this to my attention. Mark Abney Department of Entomology North Carolina State University

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