Jun 26, 2026

Supreme Court says Roundup cases limited by federal law

Posted Jun 26, 2026 5:09 PM

The Supreme Court ruled that federal pesticide law limits certain state-based lawsuits alleging pesticide makers failed to warn users about health risks not recognized by federal regulators. The Hill said the Court sided with Monsanto in a case involving Roundup herbicide. The lawsuit was brought by Missouri resident John Durnell, who claimed the company failed to warn consumers about a cancer risk associated with glyphosate and was awarded $1.25 million under state law.

The Court found that the Federal Insecticide, Fungicide, and Rodenticide Act, known as FIFRA, prevents states from imposing labeling requirements that differ from those approved by the EPA. The case centered on whether plaintiffs can sue pesticide companies in state court if they don’t warn of health effects that go beyond those formally recognized by the EPA. The ruling is expected to have significant implications for future pesticide litigation and could provide greater legal certainty for manufacturers operating under federally approved labeling standards.

-NAFB