Syngenta, maker of a controversial pesticide linked to Parkinson’s disease, said on Tuesday that it would stop making its paraquat weed killer by the end of June. The announcement comes as the company is facing several thousand lawsuits brought by people in the US who allege they developed Parkinson’s disease due to their exposure to Syngenta’s paraquat products. The company did not mention the litigation in its announcement. Paraquat has been used in the US since 1964 as a tool to kill broadleaf weeds and grasses. Though banned in several countries, including throughout Europe, Syngenta’s paraquat-based Gramoxone herbicide brand has remained popular with US farmers for use in growing soybeans, cotton and corn, as well as in growing grapes, pistachios, peanuts and many other crops. Numerous scientific studies have found that paraquat damages cells in the brain in ways that can lead to Parkinson’s, and more than 8,000 lawsuits are pending in US courts over the Parkinson’s allegations. The New Lede, in conjunction with the Guardian, obtained and revealed many of Syngenta’s internal corporate files, which show that not only was Syngenta aware of research linking paraquat to Parkinson’s decades ago, but it also sought to secretly influence scientific information and public opinion regarding those links. Lawmakers in multiple states have introduced legislation to ban paraquat, and several federal lawmakers have also called for bans. Note: For more along these lines, read our concise summaries of news articles on health and toxic chemicals. - The Guardian