U.S. Supreme Court Rules in Favor of Monsanto in the Durnell Case

Washington, D.C. (June 25, 2026) - Today, the U.S. Supreme Court ruled in favor of Monsanto in Monsanto Co. v. Durnell, holding that the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) preempts state-law failure-to-warn claims based on pesticide labeling when the U.S. Environmental Protection Agency (EPA) has not required the warning at issue.

The decision provides important clarity regarding the relationship between federal pesticide regulation and state tort law, reaffirming EPA's authority to establish labeling requirements based on scientific review and risk assessment. The ruling helps ensure a consistent national framework for pesticide labeling and regulation.

"This decision is a win for farmers and the broader agricultural community," said Sam Kieffer, NAWG CEO. "Farmers depend on clear, predictable, science-based regulations and continued access to effective crop protection tools. Today's decision reaffirms that EPA's label, based on a rigorous process of scientific review, is the law. NAWG continues to support a regulatory system grounded in sound science, transparency, and consistency."

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