Syngenta controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
2022
Russian operations after the invasion of Ukraine
Syngenta was criticized for continuing to supply agricultural products in Russia after the invasion of Ukraine, with campaign groups arguing that the company should withdraw or reduce its activities.
2021
Paraquat litigation
Plaintiffs alleged that Syngenta's paraquat herbicide was associated with Parkinson's disease. Syngenta has denied that its product causes the disease and has faced extensive litigation and settlement activity.
2014
Dispute involving Tyrone Hayes and atrazine research
Syngenta faced allegations that public-relations activities sought to discredit University of California biologist Tyrone Hayes, whose work examined atrazine and amphibian development. Syngenta denied targeting Hayes and rejected the allegations.
2007
Brazil seed-research-farm confrontation
A conflict during an occupation of a Syngenta research facility in Paraná resulted in deaths and injuries. Subsequent investigations and litigation disputed the characterization of the event and examined the conduct of private security personnel and demonstrators.