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herbicide control

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Catalogue: GRDC Media
Western Australian research investigating herbicide control of wild radish in cereal crops has highlighted the importance of good spraying conditions to maximise chemical uptake by the weed... It has also shown the importance of combining herbicides with different modes of action to maximise wild radish control, especially where herbicide resistance is suspected... "It is critical that, where possible, growers take advantage of good spraying conditions to maximise wild radish control to not only grow grain but also prevent radish seeds returning to the seed bank and further compounding the problem."..
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Catalogue: GRDC Updates
The work showed that Touchdown Broadacre Tm (TD- BA) offered ~96% control but another formulation of a Group M herbicide at comparable use rates only controlled 10% at 52 days after application (DAA)... A group M herbicide @ 2lt/ha followed by a double knock of Sprayseed Tm offered moderate improvement in control (61% control @ 52 DAA)... The summary of the results of this trial is shown in Graph 1 below...
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Catalogue: NVT Online Papers
Canola is often windrowed to ensure all pods are mature at harvest... In summary, windrowing too early can result in lower yields and oil contents and too late will lead to shattering losses... Canola is sold into a deregulated domestic market and the responsibility of finding an acceptable price and arranging a buyer rests with the grower...
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Catalogue: GRDC Publications
Canola is often windrowed to ensure all pods are mature at harvest... In summary, windrowing too early can result in lower yields and oil contents and too late will lead to shattering losses... Canola is sold into a deregulated domestic market and the responsibility of finding an acceptable price and arranging a buyer rests with the grower...
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Catalogue: Ground Cover
Herbicide hangover troubles crop selection.. Farming in Victoria's Mallee region, Rohan Mott was more than happy with his first crop of Compass barley, which yielded four tonnes per hectare in November from only 125 millimetres of growing-season rainfall... At Turriff East, in north-western Victoria, the Motts are making good use of the family's on-farm storage complex to provide their own segregation while working to direct-market the crop with a malting company and other contacts...
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Catalogue: GRDC Factsheets
The use of Group A herbicides in fallow to control grass weeds such as the Chloris species - feathertop Rhodes grass (Chloris virgata) and windmill grass (Chloris truncata) - have shown to be a viable option for controlling young weeds... Recent research has investigated the use of some of these herbicides for fallow applications to control grass weeds, in particular the Chloris species - feathertop Rhodes grass (Chloris virgata) and windmill grass (C. truncata)... Trial results have shown that a minimum period of 5 to 7 days should occur between applications...
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Catalogue: GRDC Updates (West)
" Agribusiness Crop Updates 2010 Herbicide control of slender iceplant Lorinda Hunt, Department of Agriculture and Food, Western Australia, Three Springs, Andrew Blake, Department of Agriculture and Food, Western Australia, Geraldton Research conducted by L Hunt... In the short stubble-no chaff plots (where stubble biomass was lowest), water rate did not have a large impact on annual ryegrass control, although Sakura was more effective at the high water rate... In the short stubble-chaff plots, all herbicides were more effective at the high water rate...
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Catalogue: GRDC Factsheets
A tactic that has rapidly increased in recent seasons is the use of pre-emergent herbicides, especially in the summer crop and fallow... The presence of stubble or existing vegetation can intercept herbicide before it reaches the soil surface... In a zero till system, it is most likely that allow for weeds to germinate at depth and effect on the binding ability of herbicides the pre-emergent herbicide will need to grow through the herbicide band on the (adsorption)...
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Catalogue: GRDC Media
In an effort to find out which herbicides will work best in 2015, it is recommended weed seeds collected during or after harvest are sent for herbicide resistance (or susceptibility) testing... In the past, testing for resistance has often confirmed suspicions and it is better to focus on which herbicides could be effective this year by testing for susceptibility - according to the GRDC-supported Australian Herbicide Resistance Initiative (AHRI)... CSU's John Broster says there is now little point in testing annual ryegrass for susceptibility to Group A 'FOP' herbicides or Group B herbicides due to the high levels of resistance found in these weeds across most regions of Australia...
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Catalogue: GRDC Media
Time to test the susceptibility of escapee weed seeds.. In an effort to find out which herbicides will work best in 2015, it is recommended weed seeds collected during or after harvest are sent for herbicide resistance (or susceptibility) testing... In the past, testing for resistance has often confirmed suspicions and it is better to focus on which herbicides could be effective this year by testing for susceptibility - according to the GRDC-supported Australian Herbicide Resistance Initiative (AHRI)...
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