A perfect storm is brewing for what could potentially be another big herbicide resistance problem in Australia. The Group B herbicide sulfosulfuron (Monza®) is about to get a lot cheaper, and many growers are looking to increase their use of Group B Imi tolerant barley and wheat varieties in the near future. Past experience tells us that reducing the price often results in dramatic increases in the use of a given herbicide. This is likely to have a big impact on the evolution of Group B resistance in brome grass and barley grass. AHRI researcher Mechelle Owen found that 13%…
Australian Herbicide Resistance Initiative (AHRI)
