The Ninth Circuit vacated EPA's denial of a petition to cancel the registration of the pesticide tetrachlorvinphos (TCVP). An environmental group petitioned the Agency to cancel the registration of TCVP for use in household pet products, and EPA denied the petition. The group argued the Agency erred...

The Ninth Circuit granted in part one petition to review and denied another petition to review EPA's 2014, 2015, and 2017 decisions to register a pesticide that combines two chemicals—2,4-dichlorophenoxyacetic acid (2,4-D) choline salt and glyphosate—to kill weeds on corn, soybean, and cotton fi...

The Ninth Circuit vacated EPA's 2018 decision to conditionally register three dicamba-based herbicides designed to be sprayed on genetically engineered soybeans and cotton. Nonprofit groups argued the decision violated the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). The court found ...