As a result, different enzymes are involved with the many different biological processes that occur within a plant. This herbicide-enzyme relationship is very specific and any chemical modification of the herbicide or enzyme can eliminate herbicidal activity. Regardless of how resistance develops, it is important to know the herbicide mode of action to plan weed control programs that prevent the development and spread of resistant weeds. Weed control programs should incorporate a variety of strategies that emphasize prevention. Relying solely on a single strategy or one herbicide family for managing weeds increases the likelihood that herbicide resistance will development.
Guidelines using an integrated approach for managing herbicide resistant weeds follow.
Use herbicides only when necessary. Practice herbicide rotation using herbicides with different modes of action and herbicides from different chemical families. Use herbicide mixtures with different modes of action. Control weed escapes and sanitize equipment to prevent the spread of resistant weeds. Integrate mechanical, cultural, and chemical weed control methods.