Herbicide-resistant weed issues have been escalating in agronomic crop production across the U.S. As a result, farmers have increased their reliance on residual herbicide programs. These programs often include layered residuals with multiple sites of action. In addition to residual herbicides, cover crops can be a tool for suppressing herbicide-resistant weeds. Cover crops have the potential to reduce the density and size of weeds early in the growing season, improving herbicide effectiveness and reducing selection for resistance.
Below are links to the Take Action cover crop fact sheet series, covering species selection, establishment, carryover and termination:
Cover Crops for Weed Management: Species Selection
Cover Crops for Weed Management: Establishment
Cover Crops for Weed Management: Herbicide Persistence and Carryover to Cover Crops
Cover Crops for Weed Management: Termination