Chlorpyrifos is an organophosphate insecticide (Group 1B; IRAC) used to kill insects and mites on crops, buildings, animals, and other settings. All indoor uses of chlorpyrifos were phased out in the 2000s. Chlorpyrifos products are restricted-use pesticides, meaning sale and use of this chemical is restricted to certified applicators.
Iowa State University
Dean, Ashley and Hodgson, Erin W., "Corteva™ to End Chlorpyrifos Production: What Does this Mean for Iowa Farmers?" (2020). Integrated Crop Management News. 2608.
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