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Oct. 22, 2026

LA herbicide applicator sues Syngenta, alleging atrazine caused cancer

A longtime herbicide applicator diagnosed with non-Hodgkin lymphoma alleges Syngenta failed to warn users about the cancer risks of atrazine, which an international research agency recently classified as probably carcinogenic to humans.

A longtime Los Angeles County herbicide applicator has filed a lawsuit against Syngenta in federal court, alleging its atrazine-based products caused his non-Hodgkin lymphoma and that the company failed to warn users about the cancer risk.

Apostolos Panayiotou alleges he mixed, loaded and applied the herbicides for three decades. His lawsuit targets warnings outside federally approved pesticide labels, including advertising, technical materials and applicator training. Wisner Baum...

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