Cases of herbicide-resistant weeds worldwide are continually compiled online in the International Survey of Herbicide Resistant Weeds (see website link on this page). Such weed biotypes are becoming increasingly common since the first reports of their occurrence in the 1950s. These biotypes survive herbicide application at doses that usually give … Continue reading Incidence of Herbicide Resistance in Rigid Ryegrass (Lolium rigidum) across Southeastern Australia