Barley grass confirmed as resistant to glyphosate in South Australia

A population of the widespread winter annual grass weed, northern barley grass (Hordeum glaucum), has been confirmed resistant to the key herbicide glyphosate in South Australia. Dr Chris Preston, Associate Professor of weed management at the University of Adelaide and chair of the Australian Glyphosate Sustainability Working Group (AGSWG), says the resistance has been confirmed […]