Sep 26, 2022
EPA proposes cancelation of PCNB

The EPA released a Proposed Final Decision that would result in the cancellation of all registered uses of pentachloroitrobenzene, or PCNB, to address human health and ecological risk concerns.

PCNB is registered for use in-furrow to control rhizoctonia, white mold, black dot disease and common scab in potato production. In the Proposed Final Decision, EPA has identified multiple alternative products as economically and effective alternatives to PCNB in the control of these pests.

A benefits document supporting the reregistration of PCNB states, “The loss of this product would have economic consequences for potato seed producers where it is utilized to preserve quality and integrity within production of seed potatoes. For commercial potato growers the poorer aesthetics due to presence of common scab decreases the (grade and) value of their crop at market.”

NPC is working to evaluate the Proposed Final Decision and provide comments that will close November 22, 2022. Growers interested in providing information on how they control these pests (rhizoctonia, white mold, black dot disease and common scab) can complete the following survey to support NPC’s public comments by clicking here.

– National Potato Council


75 Applewood Dr. Ste. A
P.O. Box 128
Sparta, MI 49345


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