Palmer amaranth was found in North Dakota’s McIntosh County. There was another potential case being investigated, but NDSU Extension Weed Scientist Tom Peters says the Dickey County sample was smooth pigweed, not Palmer. McIntosh County is where the weed was found, likely brought in by water fowl. Peters says the second potential case of Palmer in Dickey County is smooth pigweed, not Palmer. The best explanation for the McIntosh County case was waterfowl contamination. “The area where the plant was found is on a migration route and there are wetlands near the vicinity of the field,” said Peters. Palmer amaranth is a hard weed to control, because of its resistance to herbicides. Peters says applying herbicides before the weed emerges is more effective than trying to use herbicides after its started growing.
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