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Subject: Methoprene for mosquito control TO: AAPSE members FROM: Amy Brown Jim Roelofs (EPA) has sent along the following determination on methoprene for use in mosquito control. It comes originally from Jim Downing, product manager for methoprene in the Biopesticides and Pollution Prevention Division of EPA. "The Office of Pesticide Programs has received several inquiries from state pesticide regulatory agencies regarding the use of methoprene granular and briquet products for mosquito control if the application site is an animal watering trough. Labels on these products have some relatively vague language on use sites, such as "water-holding recepticles...other containers" and "other artificial water-holding containers". The OPP product manager, noting that methoprene is also registered as a feed-through pesticide for control of flies in livestock manure, and has established tolerances for that use, concluded, after consulting with staff in the Office of Enforcement and Compliance Assurance (EPA), that an animal watering trough is an allowable site for the use of methoprene granules and briquets for mosquito control."
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