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herbicide sustainability

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Catalogue: GRDC Media
The new Gunnedah population on the left looks healthy, showing it has a much higher level of resistance compared to the sample in the centre which is known to be susceptible, and the original resistant Moree population on the right... The world's third case of glyphosate resistant liverseed grass has been confirmed in northern New South Wales, seven years after the first two cases were confirmed from east of Moree... "While this is only the third confirmed case of glyphosate resistant liverseed grass in seven years, it comes from a new area and has a much higher level of resistance than previous populations," stated Tony Cook, Technical Specialist (Weeds) with NSW Department of Primary Industries...
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Catalogue: GRDC Media
Glyphosate resistance survey finds SA growers at risk.. The random survey, conducted by the University of Adelaide and funded by the Grains Research and Development Corporation (GRDC), has shown it is time for farmers to make significant changes to weed management to halt this problem... "We knew there was some glyphosate resistance in the area from previous work," stated Associate Professor Chris Preston of the University of Adelaide and project leader, "but this surprised all of us and has set the alarm bells ringing to bring in changes to weed management...
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Catalogue: GRDC Media
Large infestation of feathertop Rhodes grass in southern Western Australia where it is spreading with summer rains.. "We have now confirmed that two populations from cropping land in New South Wales and Queensland and two from roadsides in South Australia are not controlled with glyphosate at the seedling stage and are classified as resistant," said Dr Chris Preston, chair of the Australian Glyphosate Sustainability Working Group (AGSWG)... Whilst the weed is not listed on any glyphosate herbicide labels, glyphosate has been widely used in Queensland and northern NSW to control seedlings...
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Catalogue: GRDC Media
Large infestation of feathertop Rhodes grass in southern Western Australia where it is spreading with summer rains.. "We have now confirmed that two populations from cropping land in New South Wales and Queensland and two from roadsides in South Australia are not controlled with glyphosate at the seedling stage and are classified as resistant," said Dr Chris Preston, chair of the Australian Glyphosate Sustainability Working Group (AGSWG)... Whilst the weed is not listed on any glyphosate herbicide labels, glyphosate has been widely used in Queensland and northern NSW to control seedlings...
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Catalogue: GRDC Media
Glyphosate resistance survey finds SA growers at risk.. The random survey, conducted by the University of Adelaide and funded by the Grains Research and Development Corporation (GRDC), has shown it is time for farmers to make significant changes to weed management to halt this problem... "We knew there was some glyphosate resistance in the area from previous work," stated Associate Professor Chris Preston of the University of Adelaide and project leader, "but this surprised all of us and has set the alarm bells ringing to bring in changes to weed management...
Related categories:
Catalogue: GRDC Media
A just confirmed case of annual ryegrass resistant to both glyphosate and paraquat is a warning to all farmers that rotating herbicide modes of action alone does not solve all your herbicide resistance problems, according to researchers... The Australian Glyphosate Sustainability Working Group (AGSWG), supported by the Grains Research and Development Corporation (GRDC), said it was the first case of glyphosate plus paraquat resistance in any weed species in Western Australia and a world first for wine grapes... AGSWG executive officer Andrew Storrie said the multiple herbicide resistance appeared to have been caused by 20 years of unplanned rotating of paraquat and glyphosate when treating the vine row strip...
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Catalogue: GRDC Media
A just confirmed case of annual ryegrass resistant to both glyphosate and paraquat is a warning to all farmers that rotating herbicide modes of action alone does not solve all your herbicide resistance problems, according to researchers... The Australian Glyphosate Sustainability Working Group (AGSWG), supported by the Grains Research and Development Corporation (GRDC), said it was the first case of glyphosate plus paraquat resistance in any weed species in Western Australia and a world first for wine grapes... AGSWG executive officer Andrew Storrie said the multiple herbicide resistance appeared to have been caused by 20 years of unplanned rotating of paraquat and glyphosate when treating the vine row strip...
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Catalogue: GRDC Media
Herbicide resistance opportunity knocks for WA growers.. Following significant rainfall in recent weeks, Western Australian growers have a golden opportunity to find out if they have glyphosate resistance in their paddocks, according to the Australian Glyphosate Sustainability Working Group (AGSWG)... "The samples will be tested for glyphosate and paraquat resistance and growers have the opportunity to test for other modes-of-action for a modest fee," she said...
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Catalogue: GRDC Media
Following significant rainfall in recent weeks, Western Australian growers have a golden opportunity to find out if they have glyphosate resistance in their paddocks, according to the Australian Glyphosate Sustainability Working Group (AGSWG)... "The discovery of herbicide resistance could change the way a grower needs to manage their paddocks this year," Mr Storrie said... "The samples will be tested for glyphosate and paraquat resistance and growers have the opportunity to test for other modes-of-action for a modest fee," she said...
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Catalogue: GRDC Media
The new Gunnedah population on the left looks healthy, showing it has a much higher level of resistance compared to the sample in the centre which is known to be susceptible, and the original resistant Moree population on the right... The world's third case of glyphosate resistant liverseed grass has been confirmed in northern New South Wales, seven years after the first two cases were confirmed from east of Moree... "While this is only the third confirmed case of glyphosate resistant liverseed grass in seven years, it comes from a new area and has a much higher level of resistance than previous populations," stated Tony Cook, Technical Specialist (Weeds) with NSW Department of Primary Industries...
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