Hunton Retail Law Resource

On June 25, 2026, the Supreme Court held in Monsanto Co. v. Durnell that the Federal Insecticide, Fungicide, and Rodenticide Act (“FIFRA”) preempts state law failure-to-warn claims that would require a manufacturer to add or modify warnings EPA-approved warnings on pesticide labels.  This decision is the culmination of decades of product liability litigation alleging that the popular Roundup herbicide was carcinogenic and lacked sufficient warning labels under state tort laws. While this decision will likely close the book on the Roundup litigation, it also has important implications for any manufacturers that produce products subject to federal regulation under FIFRA.