Palmer amaranth, along with large amounts of waterhemp, were identified in a Benson County, North Dakota soybean field. Count Extension agent Scott Knoke found the patch while conducting an integrated pest survey. “I came across plants that didn’t look right. I contacted NDSU Extension Weed Scientist Brian Jenks and he was certain we had waterhemp and Palmer. That field will be harvested and worked up before anything can go to seed there. I think we caught it.” Knoke says there are several hundred Palmer and waterhemp plants ranging from one inch to seven feet tall. It’s not exactly known how it got there, but Knoke thinks the weeds have been there many years.
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