It’s been common practise across the southern grain growing region to wait for opening rains, before applying a knockdown herbicide, then seeding the crop.But new research is revealing weedsare better controlled by adopting a three-pronged approach of sowing early, at a high density crop seeding rate while also applying an efficient herbicide.As the University of Adelaide’s Dr Gurjeet Gill and Ben Fleet explain, the mid-trial results come from a five-year GRDC investment looking into weed management across a range of rainfall zones in SA, Vic and WA.