Do not ignore broad-leaved weed resistance

摘要

Herbicide resistance in broad-leaved weed populations is underestimatedBand growers should ensure they are mixing modes of action when applying weedkillers to prevent the problem getting worse.The warning comes as the first Scottish case of resistance in mayweed to sulfonylurea herbicides was confirmed near Forfar, Angus, after testing at Rothamsted Research.The three key broad-leaved weeds with confirmed cases of resistance to the ALS-inhibiting sulfonylureas are poppies, chick-weed and mayweed.