Do all herbicides have the same risk of developing resistance?
The potential for herbicide resistance seems to be greater with some modes of action than others. The ALS inhibitors and ACCase inhibitors are two groups that have a higher risk than others and should be managed more carefully. The risk for triazine resistance is also higher because of the many years that triazines have been used. Even though other herbicides may have “less-risky” modes of action, care should be taken not to over use or abuse these herbicides. For example, glyphosate would probably fall in a less risky mode of action group. A few years ago, it was even argued that glyphosate resistance would not occur. However, there are now two weed species with glyphosate-resistant biotypes.
