Chlorpyrifos Registration Update

Bill Cissel, Extension Agent – Integrated Pest Management;

The EPA has denied a petition from the Pesticide Action Network of North America and Natural Resources Defense Council to revoke all pesticide tolerances and cancel all chlorpyrifos registrations. The EPA “will continue to review the science addressing neurodevelopmental effects of chlorpyrifos”. Chlorpyrifos remains registered as it undergoes registration review and the EPA intends to complete the assessment by October 1, 2022. Here are a couple links for more information about EPA’s order to deny the petition to revoke all tolerances for chlorpyrifos:

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