New Maine Restrictions on Certain Rodenticides and Herbicides Now in Effect

MAINE BOARD OF PESTICIDES CONTROL • June 26, 2026

The Maine Board of Pesticides Control (BPC) is notifying homeowners, pesticide users, retailers, and applicators that new restrictions on certain rodenticides and herbicides took effect on June 16, 2026. Under the new rules, products containing the following active ingredients are now classified as Restricted Use Pesticides in Maine:
• Rodenticides: Brodifacoum, Bromadiolone, Difenacoum, Difethialone
• Herbicides: Tebuthiuron
As a result, these products may only be purchased and used by individuals who hold a valid pesticide applicator license issued by the BPC. General Use Pesticide Dealers may no longer sell products containing these active ingredients, and unlicensed individuals may no longer purchase or use them.