Syngenta Settled All Paraquat-Parkinson's Suits Pre-Trial While Disputing the Science

Syngenta settled every paraquat lawsuit before trial, including a January 2026 agreement, while rejecting claims the herbicide causes Parkinson's. Neurologist Wes Thevathasan says epidemiological studies link paraquat to roughly tripled Parkinson's risk. Over 70 countries ban paraquat; generic versions still sell in Australia.