Please check out our new factsheet Herbicide Rotation Restrictions in Forage and Cover Cropping Systems.
Here is a short excerpt:
Designing effective herbicide programs while following pesticide label restrictions can be challenging in any cropping system. With rotations that include forage and cover crops, the challenge can be increased-especially when a planned cover crop might be needed as supplemental or emergency forage. In this case, the best approach is to be aware of crop rotation restrictions ahead of time and plan the most effective solutiuon for all possible scenarios.
For more information on this topic, please see another WCWS article- Is it legal to use a cover crop as a forage crop? Maybe not.