US Supreme Court hands win to Monsanto in case related to claims Roundup causes cancer

MAINE MORNING STAR • June 25, 2026

State courts cannot find liability for labeling shortcomings in pesticides and related products because such products are covered by federal law, the U.S. Supreme Court said Thursday in a decision backing agricultural giant Monsanto. The justices, in a 7-2 decision, threw out a $1.25 million verdict a Missouri court awarded to a man who said long-term use of the weedkiller Roundup caused him to develop non-Hodgkin lymphoma, a type of blood cancer. The herbicide, produced by Monsanto, does not include any warning of carcinogenic material and Monsanto and parent company Bayer deny there is any link.