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Palmer Amaranth found in Grant County

Palmer amaranth (Amaranthus palmeri) has been confirmed in Grant County in western North Dakota. An area farmer contacted his county weed officer about suspect plants, who worked with North Dakota State University Extension to submit samples for DNA analysis to the National Agricultural Genotyping Center, where it was confirmed as Palmer amaranth.

Palmer amaranth is native to the southwestern U.S. but was accidentally introduced to other areas and has devastated crops in the South and Midwest. It is a prolific seed producer that can emerge throughout the growing season. It grows rapidly at 2-3 inches per day in optimum conditions and is prone to herbicide resistance and multiple modes of action. It is a highly invasive weed that can dramatically cut crop yields.

“I strongly encourage agricultural producers to monitor millet plantings for Palmer amaranth, as that may be the likely source of infestation,” Agriculture Commissioner Doug Goehring said. “With harvest season in full swing, farmers are encouraged to scout fields and clean excess dirt and plant debris off equipment between fields to prevent unintentional spread.”

 

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Grant County News

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