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Syngenta says it will stop making pesticide linked to Parkinson’s disease

The Guardian - World NewsEN 3 min read 100% complete by Carey GillamMarch 3, 2026 at 11:02 PM
Syngenta says it will stop making pesticide linked to Parkinson’s disease
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Syngenta announced it will cease production of its paraquat weed killer by the end of June, citing competition and minimal contribution to global sales. This decision comes as the company faces thousands of lawsuits in the US alleging a link between paraquat exposure and Parkinson's disease. While Syngenta maintains paraquat is safe when used as directed and effective for weed control, numerous studies suggest a connection to Parkinson's. Paraquat, used in the US since 1964, is banned in several countries but remains popular among American farmers. Syngenta has settled some cases and is negotiating settlements for the remaining lawsuits, despite asserting that paraquat does not cause Parkinson's.

Key Entities & Roles

Key Player Opposition Context
University of Florida 70% Mike Hollands ×280% Michael Okun ×280% United States ×290% Syngenta ×3100% Parkinson's disease ×4100% Paraquat ×5100%

Keywords

paraquat 100% parkinson's disease 90% pesticide 70% syngenta 60% lawsuits 60% weed killer 50% product safety 40% herbicide 40%

Sentiment Analysis

Negative
Score: -0.20

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The Guardian - World News
Classification Confidence
90%

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paraquatparkinson's diseasepesticidesyngentalawsuitsweed killerproduct safetyherbicide
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