Inhibition of <scp>EPSPS</scp> overexpression of glyphosate‐resistant <i>Lolium perenne</i><scp>L.</scp> with a clethodim and glyphosate mixture

The effects of glyphosate plus clethodim impact in different senses according to the mechanism of resistance involved, where the convergent action of both herbicides controlled the susceptible and EPSPS overexpression biotypes. In contrast, the P106S biotype died because of the clethodim component in the mixture. Mixing herbicides should not be considered a complete solution to herbicide resistance management, and its potential seems dependent on the resistance mechanism involved. © 2025 Society of Chemical Industry.