The U.S. Environmental Protection Agency (EPA) is requesting comments on a petition filed by the Texas Department of Agriculture to permit emergency use of the hazardous herbicide propazine to kill herbicide resistant weeds infesting Texas cotton. Calling the resistant weeds an emergency, Texas requested to use hundreds of thousands of pounds of the toxic chemical on up to three million acres of cotton.

‘This request clearly demonstrates that that herbicide-resistant crops-by generating an epidemic of resistant weeds-lead directly to increased use of hazardous chemicals,” said Bill Freese, a science policy analyst at Center for Food Safety. ‘EPA should reject this request.”

Propazine is a possible human carcinogen and a ‘restricted use pesticide”-the EPA’s category for particularly hazardous agricultural chemicals. The EPA has found that propazine, like atrazine, is an endocrine disruptor (disrupts the hormonal system) and that when fed to pregnant rats, it causes birth defects in their young. Propazine is persistent, requiring years to break down, and is detected in both ground and surface waters. The European Union has banned propazine due to its toxicity.

Granting the emergency request to use propazine to kill glyphosate-resistant Palmer amaranth-also known as pigweed-would lead to a 10-fold increase in the use of the toxic herbicide, […]

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