2024 Dicamba Update: On February 6, federal Engenia, Tavium, and XtendiMax registrations were vacated by the Arizonia District Court due to their off-site drift and injury to non-target plants. This court action would prevent the use of these products in 2024. However, the EPA issued an order allowing use of product already in grower possession and limited sale and distribution of these dicamba products that are in the channels of trade. Continue to check MDA's website for possible updates or changes before using Engenia, Tavium, and XtendiMax in 2024.
According to the EPA's Existing Stocks Order for Dicamba Products the sale and distribution of XtendiMax, Engenia, and Tavium will end May 13, 2024 for purchasers south of I-94 and will end May 31, 2024 for purchasers north of I-94.
Additionally, XtendiMax, Engenia, and Tavium must not be applied after June 12, 2024 for users south of I-94 and June 30, 2024 for users north of I-94.
State specific restrictions still apply, see the "Cutoff Date and Cutoff Temperature" section on the Dicamba Herbicide page.
Continue to check the Dicamba Herbicide page for possible updates or changes before using Engenia, Tavium, and XtendiMax in 2024.
OTT Dicamba is a selective and systemic herbicide that is used for post-emergence control of broadleaf weeds in a variety of food and feed crops, as well as turfgrass.
On March 15, 2022, the US Environmental Protection Agency (EPA) registered three dicamba products for postemergence application in dicamba-tolerant (DT) soybean and dicamba-tolerant cotton. The registrations expire in December 2025 and apply to the following products:
- XtendiMax (EPA Reg. # 264-1210);
- Engenia (EPA Reg. # 7969-472);
- Tavium (EPA Reg. # 100-1623).
This new use of dicamba herbicide provides another post-emergence control option for broadleaf weeds in DT soybeans in Minnesota. This is especially important for control of weeds resistant to glyphosate and other herbicides.
Dicamba products registered for OTT applications to DT soybeans are "Restricted Use Pesticides" (RUP). Their conditional registration is through December 2025. If you are planning to use on of the RUP dicamba products, you must attend label-mandated auxin/dicamba training offered by dicamba registrants (BASF, Bayer, Syngenta).
Other federal requirements for the OTT dicamba products that appear on the labels include:
- Requiring an approved pH-buffering agent, also known as a volatility reducing agent, be tank mixed with dicamba products prior to all applications
- Requiring a downwind buffer of 240 feet and 310 feet in areas where listed endangered species are located
- Additional recordkeeping items
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
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2024: Minnesota-specific Dicamba Herbicide Restrictions Announced for 2024 Growing Season
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2023: Minnesota-specific Dicamba Herbicide Restriction to Remain in Place for 2023
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2022: EPA Approves 2022 Minnesota-Specific Restrictions for Dicamba Herbicide; Date and temperature restrictions added to label
Labels
- XtendiMax With VaporGrip Technology Herbicide (EPA Reg. No: 264-1210) Minnesota Specific Label (PDF)
- Engenia Herbicide (EPA Reg. No: 7969-472) Minnesota Specific Label (PDF)
- Tavium Plus VaporGrip Technology Herbicide (EPA Reg. No: 100-1623) Minnesota Specific Label (PDF)
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.
