Escaped ryegrass in corn can quickly reduce yield potential and compete aggressively for nutrients, light, and moisture. In this PCT Shorts video, Jonah Johnson breaks down what to do when escaped ryegrass in corn shows up after planting, using long-term University of Kentucky research to guide practical, in-season decisions. The video explains why glyphosate alone is no longer effective on large ryegrass and outlines realistic post-emerge options across different corn trait systems.

Learn how Liberty (glufosinate) can help suppress existing ryegrass in LibertyLink and stacked-trait corn, what limited tools exist for non-GMO and Roundup Ready programs, and how Enlist corn expands control options with additional grass herbicides. Application tips such as carrier volume, rate accuracy, and ideal weather conditions are also covered. While options are limited, the right chemistry and timing can reduce competition and help corn regain the advantage.

Learn:

• Why Roundup alone won’t cut it
• When Liberty (glufosinate) can help suppress large ryegrass
• What options exist for non-GMO, Roundup Ready, LibertyLink, and Enlist corn
• Key application tips like carrier volume, rates, and weather conditions

Control options are limited—but timing, trait selection, and the right chemistry can still make a difference.

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