How MN Ag Spray Drift Violations Are Handled

David Kee (right) director of research with Minnesota Soybean Growers Association, speaks on Jan. 25 at the Minnesota AgExpo in Mankato, flanked by Dan Dvorak, ag chemical investigator for the Minnesota Department of Agriculture. Photo taken Jan. 26, 2017, Mankato, Minn. (Forum News Service/Agweek/Mikkel Pates)


In a world with more detailed requirements on spray nozzles and ag spray buffers, state regulation and oversight shouldn’t change much. Dan Dvorak, an ag chemical investigator for the Minnesota Department of Agriculture, was one of the speakers at the Minnesota AgExpo in Mankato on Jan. 25, 2017.

Dvorak said 13 investigators cover 12 territories in Minnesota. The department usually inspects the site within one or two days and collect samples. They check with other applicators in the area and study weather data collected from official state Department of Transportation automated sites, and always within 30 miles of a complaint. Cases are usually completed within three months to eight months and can result in fines, which are imposed by enforcement officials and are impacted by numerous variables. Sometimes damaged parties use state information to seek their own civil cases against applicators.

People with questions about chemical drift can contact the Minnesota Department of Agriculture at (800) 422-0798, or go to Look for information about the Minnesota AgExpo in the Jan. 30, 2017, issue of Agweek magazine, and on AgweekTV.