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Pre-harvest Palmer amaranth identification

During the growing season, it can be difficult to tell the difference between Palmer amaranth and waterhemp plants. Before you harvest soybean fields this fall, take some time to scout for these weeds. These photos from Aaron Hager at the University of Illinois will help you identify Palmer amaranth plants. 

Read the story from U of IL.

As a reminder, through finding provided by the Illinois Soybean Association we are able to screen samples of suspected Palmer amaranth using molecular markers to verify the species identification.  Information on how to collect and submit tissue samples from suspected Palmer amaranth plants can be found in the “Palmer Amaranth Identification” pdf.  Please download this form, provide as much information as possible, and submit it along with the tissue samples to the address listed at the top of the form.

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