Mealey's (July 19, 2017, 12:15 PM EDT) -- SAN FRANCISCO — The Ninth Circuit U.S. Court of Appeals on July 18 denied a motion for writ of mandamus sought by two environmental groups that want the U.S. Environmental Protection Agency to revoke all food tolerances for, and cancel the registration of, a pesticide chlorpyifos (In re: Pesticide Action Network North America, et al. v. U.S. Environmental Protection Agency, No. 14-72794, 9th Cir.; 2017 U.S. App. LEXIS 12871)....