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Successful management of Palmer pigweed (Amaranthus palmeri) requires season-long diligence. Cotton growers should start clean with timely burndown herbicides followed by one or more preemergence (PRE) herbicides, one or two postemergence (POST) applications and lay-by herbicides as needed. Late-emerging weeds have less of an impact in corn, but should be controlled. Management strategies should include residual herbicides, multiple modes of action, and multiple herbicide applications.
Read more about cotton pigweed management at RoundupReadyPLUS.com.