Two new infestations of Palmer amaranth have been identified in Iowa since the initial finding in Harrison County in August. Another Harrison County field with Palmer amaranth was found, approximately 15 miles from the first area near Modale. The second area was not as extensive as the first, and there is a good likelihood of eradicating the weed in this area. There is a possibility that transport of materials from the Modale site is responsible for the newer infestation.
Iowa State University
Hartzler, Robert G., "Palmer Amaranth Update" (2013). Integrated Crop Management News. 27.
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