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Catalogue: GRDC Media
Pioneering Western Australian research into techniques to control weed seeds in grain paddocks at harvest time has received international recognition... Dr Walsh said the research, funded by the Grains Research and Development Corporation (GRDC), proved that a high level of weed seeds is retained at wheat crop harvest time, providing further evidence of the effectiveness of harvest weed seed control (HWSC) in preventing weeds from replenishing the seed bank... "The research demonstrated that the four dominant annual weeds of Australian cropping systems - annual ryegrass, wild radish, brome grass and wild oats - retain 77 to 95 per cent of their seeds above a harvest cut height of 15cm at wheat crop maturity," he said...
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Catalogue: GRDC Media
Seed Destructor on course for commercial production The Harrington Seed Destructor is edging closer towards commercial production, offering an additional strategy in the grains industry's battle against herbicide resistance in weeds... The trials and evaluations are being overseen by Australian Herbicide Resistance Initiative (AHRI) researcher, Dr Michael Walsh, who says the trial sites will be revisited as soon as the break in the season occurs to assess the efficacy of the unit in reducing annual ryegrass emergence. ".. Dr Walsh said the trials and demonstrations in the southern cropping region during December involved 15 sites over 16 days and a travelling distance of 4000 kilometres during that time. "..
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Catalogue: GRDC Media
Destroy weed seeds with narrow windrow burning.. Narrow windrow burning could be the answer for grain growers looking for a simple, low cost way of destroying weed seeds after harvest... Narrow Windrow Burning involves adding a chute to the harvester (top) to direct the chaff into a narrow windrow, which is later burnt (bottom) to destroy weed seeds...
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Catalogue: GRDC Media
Destroy weed seeds with narrow windrow burning.. Narrow windrow burning could be the answer for grain growers looking for a simple, low cost way of destroying weed seeds after harvest... Narrow Windrow Burning involves adding a chute to the harvester (top) to direct the chaff into a narrow windrow, which is later burnt (bottom) to destroy weed seeds...
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Catalogue: GRDC Media
The upcoming Narrabri and Mullaley grains research updates will give growers and advisors the chance to hear from Professor Michael Walsh as he discusses his extensive research... Dr Walsh has been integral in developing harvest weed seed control processes, and said his research showed that regardless of whether growers were using the Harrington Seed Destructor or a chaff cart behind the header, direct baling harvest residues or narrow windrow burning, the key was to capture and destroy weed seeds... "There is some weed seed shedding at maturity which may make some growers a little skeptical about how much seed is captured at harvest, but research shows a high percentage of total weed seed production is retained on plants at a height that ensures collection during harvesting...
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Catalogue: GRDC Media
Pioneering Western Australian research into techniques to control weed seeds in grain paddocks at harvest time has received international recognition... Dr Walsh said the research, funded by the Grains Research and Development Corporation (GRDC), proved that a high level of weed seeds is retained at wheat crop harvest time, providing further evidence of the effectiveness of harvest weed seed control (HWSC) in preventing weeds from replenishing the seed bank... "The research demonstrated that the four dominant annual weeds of Australian cropping systems - annual ryegrass, wild radish, brome grass and wild oats - retain 77 to 95 per cent of their seeds above a harvest cut height of 15cm at wheat crop maturity," he said...
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Catalogue: GRDC Media
Seed Destructor on course for commercial production The Harrington Seed Destructor is edging closer towards commercial production, offering an additional strategy in the grains industry's battle against herbicide resistance in weeds... The trials and evaluations are being overseen by Australian Herbicide Resistance Initiative (AHRI) researcher, Dr Michael Walsh, who says the trial sites will be revisited as soon as the break in the season occurs to assess the efficacy of the unit in reducing annual ryegrass emergence. ".. Dr Walsh said the trials and demonstrations in the southern cropping region during December involved 15 sites over 16 days and a travelling distance of 4000 kilometres during that time. "..
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Catalogue: Ground Cover
Trials in both the western and south-eastern Australian grain-growing regions have found a 55 to 58 per cent reduction, overall, in the emergence of annual ryegrass across the three main harvest weed-seed control (HWSC) systems being practised by growers... Work by Dr Michael Walsh and Professor Stephen Powles from the Australian Herbicide Resistance Initiative (AHRI) has also found that all these HWSC systems - chaff carts, narrow windrow burning and the Harrington Seed Destructor (HSD) - have similar rates of success... The HSD, which renders seeds non-viable by collecting and impacting the chaff as it exits the harvester, can be 92 to 99 per cent effective, depending on seed species...
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Catalogue: GRDC Media
Seed destructor set for test debut in the south this harvest Grain growers throughout Victoria, South Australia and New South Wales are about get their first glimpse of the Harrington Seed Destructor in action on their own turf... The HSD has been developed by Western Australian grower and inventor Ray Harrington, with assistance from the Australian Herbicide Resistance Initiative (previously the Western Australian Herbicide Resistance Initiative), the University of South Australia and the Grains Research and Development Corporation (GRDC)... The results confirmed the efficacy of the unit in reducing annual ryegrass emergence, paving the way for its introduction into Australian farming systems...
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Catalogue: GRDC Media
Seed destructor set for test debut in the south this harvest Grain growers throughout Victoria, South Australia and New South Wales are about get their first glimpse of the Harrington Seed Destructor in action on their own turf... The HSD has been developed by Western Australian grower and inventor Ray Harrington, with assistance from the Australian Herbicide Resistance Initiative (previously the Western Australian Herbicide Resistance Initiative), the University of South Australia and the Grains Research and Development Corporation (GRDC)... The results confirmed the efficacy of the unit in reducing annual ryegrass emergence, paving the way for its introduction into Australian farming systems...
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