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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: NVT Online Papers
This section of the Manual relating to Barley has been produced following the annual review by GTA of Standards... Grain exporters must be aware of MRLs of importing countries and which countries accept Codex MRLs... At the conclusion of the test, record the time in seconds...
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Catalogue: GRDC Media
Just released trial results have confirmed the efficacy of the Harrington Seed Destructor (HSD) in reducing annual ryegrass emergence, paving the way for its introduction into Australian farming systems... The HSD has been developed by farmer and inventor Ray Harrington with support from the Australian Herbicide Resistance Initiative (AHRI), based at The University of Western Australia, and the Grains Research and Development Corporation (GRDC)... Dr Walsh said that while the trials focussed on ryegrass because it was the most problematic weed in Australian cropping, the HSD was also equally effective in controlling other weed seeds including wild radish, wild oat and brome grass...
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Catalogue: GRDC Updates
Take home message Take the time to look hard at your cropping rotation and how chemicals fit to ensure longer term success... In 2007 samples of wild oats were tested with the following herbicide resistance results :- 20% to Wildcat , 10% to Topik , 30% to Atlantis and 15% to Mataven ... To avoid or reduce herbicide resistance to Groups A, B & Z we need to consciously rotate to other chemical groups such as Group C, D & J. If the opportunity arises in the rotation where proper incorporation can be achieved, the use of Trifluralin (D) and Avadex (J) should be considered...
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Catalogue: GRDC Updates (North)
Until such varieties are released, northern growers and advisers need to select varieties firstly on the basis of crown rot risk and then manage for stripe rust ... There is a risk of WSMV being spread through infected seed into new areas... We have not been able to determine an economic threshold for RGB in sorghum from these trials...
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Catalogue: GRDC Updates (South)
Until such varieties are released, northern growers and advisers need to select varieties firstly on the basis of crown rot risk and then manage for stripe rust ... There is a risk of WSMV being spread through infected seed into new areas... We have not been able to determine an economic threshold for RGB in sorghum from these trials...
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Catalogue: GRDC Publications
The results of the experiments have given Jeff the confidence to realise that he does have a viable, cost-effective alternative knockdown herbicide to glyphosate... Double knockdown (T 2.2b, page 128) Weather permitting, a double knockdown is implemented on resistant ryegrass paddocks prior to sowing using two non-selective herbicides (glyphosate followed by paraquat + diquat or paraquat, the choice being dependent upon the range of weeds present)... Helpful advice The Grays still enjoy the challenges and can see that they have made enough progress to feel they are being successful in managing a serious annual ryegrass problem...
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Catalogue: GRDC Media
With harvest in full swing, many growers are putting into practice harvest weed seed control (HWSC) systems to help tackle weeds - which are at high levels this season... Many growers are probably already familiar with the HWSC options of narrow windrow burning, chaff carts, the Harrington Seed Destructor and the Bale Direct system (baling all chaff and straw material as it exits the harvester)... The chaff deck places the chaff exiting the sieves of the harvester on to permanent wheel tracks, and it is estimated that up to 70 of these units are being used across WA's South Coast region this harvest...
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Catalogue: GRDC Media
With harvest in full swing, many growers are putting into practice harvest weed seed control (HWSC) systems to help tackle weeds - which are at high levels this season... Many growers are probably already familiar with the HWSC options of narrow windrow burning, chaff carts, the Harrington Seed Destructor and the Bale Direct system (baling all chaff and straw material as it exits the harvester)... The chaff deck places the chaff exiting the sieves of the harvester on to permanent wheel tracks, and it is estimated that up to 70 of these units are being used across WA's South Coast region this harvest...
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Catalogue: Broadacre Field Crops DAFF QLD
The paddocks with a severe broadleaf weed problem should be avoided... Only one herbicide is currently registered for post-emergent use in chickpeas, Broadstrike , and caution must be taken with its use... Correct weed identification, and match product..
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