Kansas State University


Extension Entomology

CORN—Herbicide Roundup

–by Dr. Jeff Whitworth

Just FYI: Many weed species have become resistant to the herbicide Roundup. However, as can be seen in this photo (fig 1.), non-Roundup Ready corn is still highly susceptible to Roundup while the Roundup Ready corn, which was sprayed at the same time, is still highly resistant!

Figure 1  Non-Roundup Ready corn in the foreground, Roundup Ready corn in the background (picture by Cody Wyckoff)

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