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herbicide resistant ryegrass

Catalogue: GRDC Media
Sprayer setup and using good quality water are critical to ensure full rates of glyphosate are getting to the weeds... Dr Boutsalis says a common reason for poor weed control when using glyphosate is herbicide resistance, ranging from weak resistance to strong resistance... Plants with weak resistance are often controlled with maximum label rates of glyphosate, Dr Boutsalis says, but relying on a herbicide-only option will develop resistance to very high rates...
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Catalogue: GRDC Media
Sprayer setup and using good quality water are critical to ensure full rates of glyphosate are getting to the weeds... Dr Boutsalis says a common reason for poor weed control when using glyphosate is herbicide resistance, ranging from weak resistance to strong resistance... Plants with weak resistance are often controlled with maximum label rates of glyphosate, Dr Boutsalis says, but relying on a herbicide-only option will develop resistance to very high rates...
Related categories:
Catalogue: GRDC Media
Getting mouldboard ploughing right, the advantage of an expensive herbicide strategy and how not to narrow windrow burn are just some of the initial learnings from a long-term trial in southern Victoria's high rainfall zone... Five years ago, Dr Preston surveyed paddocks in southern Victoria and found some worrying results... "We discovered that 60 per cent of paddocks between Geelong and Hamilton had ryegrass resistant to both group A and group B herbicides," Dr Preston said...
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