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weed management strategy

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Catalogue: GRDC Final Reports
Glyphosate resistance occurs where there is intensive use of glyphosate, no other effective herbicides and no other weed management tactics used... Continued use of glyphosate will increase the frequency of glyphosate resistance in populations... The project has confirmed that glyphosate resistance is most likely to occur where glyphosate is used intensively and no other effective weed control is practiced...
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Catalogue: GRDC Final Reports
The increasing area of herbicide resistant ryegrass, wild oats and brome grass on cropping farms in the southern region was a cause for concern there was a need to develop improved weed control options... 1) A range of current, new and experimental soil residual pre-emergent herbicides were evaluated for the control of ryegrass... The group includes the Hart Fieldsite group, University of Adelaide, researchers with similar research objectives, grain end-users, independent consultants and importantly representatives from the chemical companies involved, to ensure that the strategy of crop topping early maturing cereals is made possible...
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Catalogue: GRDC Media
GRDC Southern Regional Panel member and agronomic consultant Kate Wilson encourages growers and advisers to consider testing the herbicide resistance status of weeds growing on farms... Grain growers and their advisers are being encouraged to consider testing the herbicide resistance status of weeds growing on farms in the southern cropping region to help inform their weed management strategies... "Priority should be given to testing weeds in high risk paddocks where there is a long history of herbicide use and herbicide survivors have been allowed to set seed," Ms Wilson said...
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Catalogue: GRDC Final Reports
A priority list of crop weeds in Victoria was developed in consultation with famers and agronomists... A survey of 28 lentil crops showed Indian Hedge Mustard (IHM) was also a major problem, with weed densities of 20/m 2 giving an estimated 50% yield loss... Future research should investigate its ecology and management...
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Catalogue: GRDC Media
Controlling winter weeds a top priority for growers.. With warmer than average winter temperatures accelerating the growth of northern wheat crops, it is imperative that growers give top priority to weed control this season to maximise crop productivity and avoid the costly issue of herbicide resistance... GRDC manager regional grower services - north, Sharon O'Keeffe said cereal growers needed to employ a variety of tactics to effectively combat weeds including an early spray program, robust spray rates and correct spray application with consideration given to timing, wind speed, water rate, applicable droplet size, boom height and travel speed...
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Catalogue: GRDC Media
With warmer than average winter temperatures accelerating the growth of northern wheat crops, it is imperative that growers give top priority to weed control this season to maximise crop productivity and avoid the costly issue of herbicide resistance... GRDC manager regional grower services - north, Sharon O'Keeffe said cereal growers needed to employ a variety of tactics to effectively combat weeds including an early spray program, robust spray rates and correct spray application with consideration given to timing, wind speed, water rate, applicable droplet size, boom height and travel speed... "In high grass weed densities, growers need to be particularly careful that tank mixes aren't going to antagonise or reduce the efficacy of any group A herbicides which already exhibit issues with weed resistance."..
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