Information Requests Monitoring System

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Request ID: 175
Request From: Steve Toth
Date Requested: Jul 16, 2007
Request: Attached is a request for DDVP (Dichlorvos) use information in livestock operations. Please circulate these request to the experts in your respective states/territories and submit the responses to the Southern Region IPM Center Information Requests Monitoring System by Thursday, July 26, 2007. Note that the EPA has a very quick turnaround for this request. Thanks for your immediate attention to this request. Steve Toth

Responses
Responder: jeffery tomberlin
State: TX
Date Requested: Jul 20, 2007
Response: Dichlorvos is an important tool for the suppression of non-biting and biting flies associated with livestock and poultry in Texas. This compound, as you know, is part of a class of insecticide not widely used anymore due to the removal of most chemicals associated with this class from the market. The removal of this compound from the arsenal available to livestock and poultry producers will compromise their ability to use an integrated pest management approach to arthropod pest control. This compromise will be a result of dependency on pyrethroid-based compounds and the predictable resistance associated with over-use.

Responder: Holly Gatton
State: VA
Date Requested: Jul 26, 2007
Response: None of the agents/specialists who responded to our request had any knowledge of DDVP use in livestock operations in Virginia.

Responder: Mark Mossler
State: FL
Date Requested: Jul 26, 2007
Response: This office has investigated DDVP's use in several sites over the past years. Our survy results for livestock presented in the crop profiles plus inquiries to all Extension personnel associated with livestock demonstrate little to no documentable use of this AI in the state. The circumstance may well exist that stakeholders are using this material unknowningly (in pest strips) or in other materials for animal premise sanitation. The great utility to this material is the gaseous movement, which is sometimes required to flush out large infestations.

Responder: Mark Mossler
State: PR
Date Requested: Jul 26, 2007
Response: See comments from FL.

Responder: Mark Mossler
State: VI
Date Requested: Jul 26, 2007
Response: See comments from FL.

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