Glyphosate-resistant palmer pigweed in a field of soya beans© Design Pics Inc/Rex Shutterstock
More than 50m hectares of some of the best land in the world is infested with glyphosate-resistant weeds, potentially rendering this valuable herbicide obsolete. And according to agronomists and researchers, without changes in farming practice, it is set to get worse, with one predicting that all US arable crops will be affected by 2050. All five of the big global exporting countries – US, Brazil, Argentina, Canada and Australia – have herbicide resistance problems, says Steve Powles, director of the […]