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University of Nebraska Extension provides a list of herbicides that can be applied in corn or soybeans and allow for following fall-seeded cover crops to be used as forage.

Researchers at the University of Illinois have found new insight into the mechanisms of how herbicide safeners turn on a defense "switch" in the plant to protect crops from herbicide injury.

Discovered by scientist Ann Kennedy with the USDA-Agricultural Research Service, the bacterium Pseudomonas fluorescens, strain D7, offers significant activity to combat downy brome, commonly known as cheatgrass.

Downy brome is most problematic in winter wheat fields and pastures, and, as of 2000, had infested over 98 million acres of U.S. rangeland.

Fall application of herbicides is effective for controlling perennial weeds, as they begin to store carbohydrates produced through photosynthesis in the roots. Applied herbicides are translocated to the roots of the weeds as the carbohydrates are being stored, thus killing the whole plant.