EPA Open Comment Period for Neonicotinoid Insecticides

Bryan Jensen, UW Extension and IPM Program

Most are aware that EPA is going through a registration review for the neonicotinoid (IRAC 4A) insecticides. The majority of the neonicotinoid use in Wisconsin’s field crop’s is for several formulations of seed treatments in corn, soybean and wheat. Although some labels are available as foliar applications in soybean.

The ecological risk assessment open comment period ends February 20, 2018. Comments can be made online at the EPA website. If you move around within the website you will notice that comments can be made for each of five insecticides (imidacloprid, clothianidin, thiamethoxam, dinotefuran, and acetamiprid). However, at this time, EPA is requesting comments on thiamethoxam use in several crops, however Wisconsin’s focus would be for uses on corn, soybean and wheat.

Comments are also requested for a broad range of imidacloprid use. Comments are not requested for clothianidin use in any of Wisconsin’s field crops.

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