2025 Dicamba Update (As of January 2025) 

On February 6, 2024, the U.S. District Court of Arizona vacated the 2020 federal registrations of three over-the-top (OTT) dicamba products for soybeans, XtendiMax® (EPA Reg. No. 264-1210), Engenia® (EPA Reg. No. 7969-472), and Tavium® (EPA Reg. No. 100-1623), making their sale or distribution illegal in the United States after June 12, 2024.

As a result of the court decision, XtendiMax®, Engenia®, and Tavium® products are no longer registered for use in Minnesota in 2025. Minnesota's Pesticide Control Law prohibits the sale, distribution, or use of unregistered pesticides in the state. Violations may result in enforcement actions, including fines and penalties.

This court decision only affects three specific dicamba products, XtendiMax®, Engenia®, and Tavium®, which were previously registered for over-the-top use on dicamba-tolerant (DT) soybeans in Minnesota. Other dicamba products currently registered with the MDA for use in agricultural and non-agricultural sites, including fallow cropland, pastures, and conservation reserve programs, are not impacted by the court ruling.

Following the 2024 court ruling, the pesticide registrants submitted new product proposals that include OTT application of dicamba on DT soybeans. The revised labels propose new use patterns and stricter restrictions, including reduced application rates and limited over-the-top use in soybeans, aimed at reducing off-target movement and preventing crop damage. Because the application involved a new use pattern for dicamba, the EPA opened a 30-day public comment period. The EPA is now reviewing the submitted comments and evaluating the submissions with the proposed label changes. Should the EPA determine that these applications meet the standard for registration of a new use under the Federal Insecticide, Fungicide, and Rodenticide Act, the EPA will provide a separate opportunity for public comment on the proposed decision. The future availability of these products will depend on the EPA’s re-registration decisions.

Note: This information is current as of January 23, 2025, and may be subject to change as new updates from the EPA become available. For the most current information, please continue to check the Dicamba | Environmental Protection Agency or DIcamba Herbicide | MDA.websites regularly.


Disposal or Return of Existing Stocks of OTT Dicamba Products

Sale, distribution, or use of existing stock of XtendiMax®, Engenia®, and Tavium® is no longer allowed. However, the EPA issued an order. on February 14, 2024 (revised on March 12, 2024), that allows existing stocks of these products to be distributed solely for the purpose of returning them to the registrants or for proper disposal, with no end date. Individuals and entities, including end users possessing these stocks (excluding the registrants), are allowed to return them to the registrants or dispose of them in accordance with all applicable federal, state, and local waste disposal regulations.

If you have OTT dicamba products (i.e., XtendiMax®, Engenia®, and Tavium®) that need to be disposed of, check with your dealer, co-operative, or ag retailer to see if they will take back products. If they will not, please use the MDA's Waste Pesticide Collection Program. For larger volumes (over 300 pounds), call the MDA’s Jane Boerboom at 612-214-6843.

OTT dicamba was used to control broadleaf weeds, particularly those resistant to glyphosate and other herbicides, in DT soybeans in Minnesota. The loss of this tool emphasizes the need for diversified weed management, including a combination of preemergence residual and postemergence herbicides with multiple sites-of-action to reduce resistance development and broaden weed control. While not specific to Minnesota, the University Extension crop and pest management guides below provide valuable information on various weed control options. Always consult the MDA's registered product search tool to verify that any pesticide products you plan to use is registered in Minnesota. Always read and follow label instructions carefully before using any pesticide. The Label Is The Law!


Additional Information on New Dicamba Products

Tier 1 New Use Review
(2017, updated 2021, 2023)
Dicamba New Use Review - Tier 1 (PDF)
Product Labels Engenia (PDF)
XtendiMax (PDF)
Tavium (PDF)
Frequently Asked Questions Dicamba FAQs
General Information Dicamba- General Information

 

 

 

 

 

 

 


Minnesota Specific Restrictions


Labels


Cutoff Date and Cutoff Temperature

Dicamba is an important tool in combating herbicide resistant weeds in Dicamba Tolerant (DT) soybeans. Products containing dicamba can cause serious damage to non-dicamba-tolerant soybeans and to other sensitive crops and non-crop plants.

The MDA has worked with the U.S. Environmental Protection Agency (EPA) and the registrants of the three dicamba products, XtendiMax®, Engenia®, and Tavium® to include the following restrictions on the product labels.

  • Cutoff date:  Do not apply south of interstate 94 after June 12. Do not apply north of interstate 94 after June 30.
  • Cutoff temperature for the entire state: Do not apply if the air temperature of the field at the time of application is over 85 degrees Fahrenheit or National Weather Service’s forecasted high temperature for the nearest available location for the day exceeds 85 degrees Fahrenheit. Forecasted temperature must be recorded at the start of the application.

The EPA has approved these restrictions and have amended the product labels for the three dicamba products listed above since the 2022 growing season. These restrictions are valid until December 2025. The amended product labels with Minnesota-specific restrictions are available on the product manufacturer’s website (BASF, Bayer, Syngenta). If the restrictions are not part of the container label, check the company’s website to download the restrictions prior to application of any of these three dicamba products. The restrictions are also promoted through the mandatory dicamba specific training, required for anyone applying one of the approved products, on the manufacturer’s website. Compliance with these Minnesota-specific restrictions and other restrictions listed on the product label are mandatory.

Information on mandatory dicamba training can be found at the manufacturer (BASF, Bayer, Syngenta) websites.

The new cutoff date (June 12th south of Interstate 94) is based primarily on the pattern of drift complaints observed in Minnesota. 

The federal label prohibits applications of XtendiMax, Engenia, and Tavium on DT soybeans after June 30th.

In addition to the cutoff date, Xtendimax and Tavium have crop growth stage cutoffs.

Reference to commercial products or trade names here or elsewhere on this site is made with the understanding that no discrimination is intended and no endorsement is implied.