New Guidance on Cancelled Dicamba Products

The MDA has issued new, updated guidance on three cancelled dicamba products. This is in response to the Ninth Circuit Court of Appeals’ June 3, 2020, ruling and the U.S. Environmental Protection Agency (EPA)  cancellation order.

2020 State-Specific Restrictions

The MDA has a state-specific restriction on use of dicamba herbicide in Minnesota for the 2020 growing season.

  • Cutoff date: Do not apply after June 20, 2020. Setting an application cutoff date of June 20 is again expected to help reduce the potential for damage to neighboring crops and vegetation.

The decision follows the MDA’s ongoing investigations and informal surveys into reports of crop damage from alleged dicamba off-target movement over the past three growing seasons. The affected formulations are XtendiMax, Engenia, FeXapan, and Tavium. These formulations of dicamba are “Restricted Use Pesticides” for retail sale to and for use only by Certified Applicators.

View the press release for more information.

What is Dicamba?

Dicamba is a selective herbicide used for post-emergent control of broadleaf weeds in corn, soybeans, and a variety of other food and feed crops in Minnesota. It can also be used for weed control in residential areas.

Dicamba is a highly volatile chemical that can damage non-target plant species through spray drift and/or volatilization (vapor drift). Misuse of products containing this active ingredient may cause serious damage to non-dicamba-tolerant (non-DT) soybeans and to other sensitive crop and non-crop plants.


Pesticide Type Herbicide (Group 4)
Chemical Class Benzoic Acid
Common Trade Names* XtendiMax, Engenia and FeXapan
Registration Status EPA: Registered since 1967, new product conditionally registered for 2 years in 2018
MN: Registered
Structure The chemical structure of dicamba. Structure includes, Cl, O, OH, OCH3.

*No endorsement is implied in the referencing of trade names.