Lorsban (chlorpyrifos) Ban in NY
Amy Barkley, Team Leader & Livestock Specialist
Southwest New York Dairy, Livestock and Field Crops Program
Lorsban (chlorpyrifos) Ban in NY
The New York State DEC has adopted changes to the state pesticide registration regulations prohibiting chlorpyrifos in New York State effective July 31, 2021. Notice of the regulation adoption was published in the State Register July 21, 2021. Additional supporting documents for the regulation change can be found at the DEC's website.
This ban went into effect on July 31. The NYS DEC also cancelled the registrations of most chlorpyrifos products on December 31, 2020 and then cancelled the remaining products on July 31, 2021. As for any remaining grower inventory after July 31, the NYS DEC issued an enforcement discretion that will allow possession, transport, storage or handling of open or closed containers of these products for purposes of shipment out of state or for proper disposal and will allow preparation for disposal of these products until February 1, 2022 or until the Enforcement Discretion for Distribution of Unregistered Products Containing Chlorpyrifos is rescinded by the Department.
More info can be found on the DEC's website.
The NYS DEC also notes that, in addition to pursuing re-distribution of these products out of state or proper disposal, growers may also explore participation in a CleanSweepNY collection event. A collection event is planned for October 12 through 14 in DEC's Region 4. Check the CleanSweepNY website, email info@cleansweepny.org or call 518-225-8146 for details. DEC is also pursuing potential collections in other locations such as WNY or the Finger Lakes region if necessary.
This announcement was originally shared through the NWNYDLFC Team's Crop Alert on August 19th.
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December 19, 2025
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March 6, 2026
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