Registration of Dicamba for Use on Dicamba-Tolerant Crops

In 2018, EPA extended the registration for two years for over-the-top use (use on growing plants) of dicamba to control weeds in cotton and soybeans genetically engineered to tolerate dicamba. Extensive collaboration with the pesticide manufacturers, farmers, state regulators, and other stakeholders informed EPA’s decision. The registration requires label updates that add protective measures to further minimize the potential for off-site plant damage.

In 2019, EPA registered a product containing a combination of dicamba and S-metolachlor for over-the-top use on dicamba-tolerant cotton and soybeans. This combination of active ingredients is currently an approved tank mix, and as such, is already used over the top on cotton and soybeans. See question #3 below for more information this product.

The registration for all these dicamba products will automatically expire on Dec. 20, 2020, unless EPA extends the registration.

On June 3, 2020, the Ninth Circuit Court of Appeals issued an order vacating EPA’s pesticide registrations containing the active ingredient dicamba: Xtendimax with Vaporgrip Technology (EPA Reg. No. 524-617); Engenia (EPA Reg. No. 7969-345); and FeXapan (EPA Reg. No. 352-913).

On June 8, 2020, EPA issued a Contact Us to ask a question, provide feedback, or report a problem.