Minnesota-specific Dicamba Herbicide Restriction to Remain in Place for 2023
Credit: Minnesota Department of Agriculture

The Minnesota Department of Agriculture (MDA) Tuesday announced that state-specific use restrictions for three dicamba herbicide products will remain the same for the 2023 growing season in Minnesota. The restrictions are aimed at curbing off-site movement of the products. 

The affected dicamba formulations are Engenia by BASF, Tavium by Syngenta, and XtendiMax by Bayer. These are the only dicamba products labeled for use on dicamba-tolerant soybeans.

The three products are registered for use in Minnesota in 2023 with the following restrictions:

 

  • DATE CUTOFF: No application shall be made south of Interstate 94 after June 12, 2023. North of Interstate 94, use is prohibited after June 30, 2023.
  • TEMPERATURE CUTOFF: No application shall be made if the air temperature of the field at the time of application is over 85 degrees Fahrenheit or if the National Weather Service’s forecasted high temperature for the nearest available location for the day exceeds 85 degrees Fahrenheit.

Users can download these restrictions from the product manufacturer’s website, and they must be in the user’s possession during application.

“These restrictions mirror what we did in 2022 when we saw a major decrease in complaints of off-target movement from the previous year,” said Agriculture Commissioner Thom Petersen. “These products must be used without impacts on neighboring homes, farms, and gardens. The Minnesota-specific restrictions are based on scientific evidence from our drift investigations and discussions with the University of Minnesota Extension and Minnesota Soybean Growers Drift Taskforce.”

During the 2022 growing season, the MDA received 25 formal complaints and eight responses to an informal survey, all alleging off-target movement. This was a major decrease from 2021 which saw a total of 304 formal complaints and survey responses.

In Minnesota, Engenia, Tavium, and XtendiMax formulations of dicamba are approved for use on dicamba-tolerant soybeans only and are “Restricted Use Pesticides.” The dicamba products are only for retail sale to and use by certified applicators.

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