A Minnesota Department of Agriculture investigation found a new way for Palmer amaranth to be spread. In this case, the weed found its way into a soybean field through cattle manure. The cattle had been fed screenings from contaminated sunflower seed. Screening samples were tested from throughout Minnesota and Palmer amaranth was found numerous times. In some cases, there was as much as 250 Palmer amaranth seeds per pound of screenings. Farmers are advised to scout and report any suspicious plants.
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