Palmer amaranth has been found in Grant County in western North Dakota. According to the North Dakota Department of Agriculture, the likely source of infestation was millet seed. Farmers are encouraged to scout fields during harvest and clean equipment between fields to prevent unintentional spreading. So far, Palmer amaranth has been confirmed in five North Dakota counties since 2018.
The noxious weed has also been found in Minnesota’s Lincoln County in a field that was planted to a cover crop contaminated with Palmer amaranth. The company that sold the contaminated seed self-reported the violation to the Minnesota Department of Agriculture.