Annual ryegrass or blends should not be used as a cover crop due to the potential of glyphosate-resistant ryegrass in the seed stock. Furthermore, steps should be taken to remove ryegrass and prevent resistance in other species of winter cover crops.
Best-management practices to control Italian ryegrass in soybeans require efforts to control plants that emerge in the fall. Depending on the location, year and population, some Italian ryegrass may also emerge in the spring prior to planting soybeans.
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