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Catalogue: GRDC Updates
Survival of annual ryegrass plants collected at various distances into the crop to different rates of glyphosate (where glyphosate rates are measured as glyphosate applied in gram active ingredient per hectare).. In order to identify alternative herbicide controls for growers who prefer a herbicide option to other management practices, we conducted two field experiments to assess the effect of glyphosate mixtures and other herbicide mixtures in controlling glyphosate resistant annual ryegrass on some fence lines in South Australia... Alternative herbicides for control of glyphosate resistant annual ryegrass on fence lines Two sites were used for this experiment: Ungarra on the Eyre Peninsula and Hilltown near Clare...
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Catalogue: GRDC Media
It is understandable why growers are keen to control weeds along fence lines and crop margins... AGSWG Chairman Dr Chris Preston, from the University of Adelaide's School of Agriculture, Food and Wine, says the main factors that contribute to glyphosate resistant weeds are: intensive use of glyphosate; lack of competition; no other effective herbicides employed; and little or no other weed control practices employed... Many growers prefer to use glyphosate alone for weed control on fence lines due to its ease of use and low cost," Dr Preston said. "..
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Catalogue: GRDC Media
It is understandable why growers are keen to control weeds along fence lines and crop margins... AGSWG Chairman Dr Chris Preston, from the University of Adelaide's School of Agriculture, Food and Wine, says the main factors that contribute to glyphosate resistant weeds are: intensive use of glyphosate; lack of competition; no other effective herbicides employed; and little or no other weed control practices employed... Many growers prefer to use glyphosate alone for weed control on fence lines due to its ease of use and low cost," Dr Preston said. "..
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Catalogue: GRDC Updates
Herbicide resistance in Southern Australia Recent surveys of southern Australia have identified high levels of herbicide resistance in annual ryegrass... Trifluralin is damaging to wheat if it gets into the crop row, so good separation is necessary between the herbicide and the crop seed... If Trifluralin resistance is not present, it will be important to use these new herbicides for some crops in the rotation so that Trifluralin can be saved for use in crops like canola...
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