Now is a good time to be on the lookout for any suspicious pigweeds that could potentially be Palmer amaranth or waterhemp. Both species are very difficult to control and have limited management options, making prevention as well as early detection very important.
Vectors of potential introduction of Palmer amaranth and waterhemp include contaminated seed, especially millet, farm equipment, sunflower screenings, bird seed, and more. Be sure to scout areas where these vectors could potentially introduce Palmer amaranth or waterhemp. Look for large pigweeds that have a long, thin seed head at the top.
Early detection and rapid response are key to preventing and controlling these weeds. For resources to help identify Palmer amaranth and waterhemp or if you find a pigweed that is suspicious, please contact the Richland County Extension Office at 406-433-1206.
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