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weed species

Catalogue: Ground Cover
A bridge too far - weeds a reservoir for hidden diseases.. Weeds that survive in a bridge, both living and dead, harbour multiple crop diseases including crown rot, rust and powdery mildew, says Sue Thompson from the Queensland Department of Agriculture, Fisheries and Forestry (DAFF)... Controlling weeds in green and brown bridges is a community issue and requires neighbours to work together to remove volunteers and weeds, Ms Thompson says...
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Catalogue: GRDC Media
DAF is seeking permission from growers and land managers to enter properties to collect weed seeds, and will conduct two surveys in Queensland coinciding with winter and summer grain and legume harvests... Weeds targeted in the survey include feathertop Rhodes grass, fleabane, sowthistle, barnyard grass, windmill grass, liverseed grass, annual ryegrass wild oat and Brassica species if present... In Queensland, growers will be contacted prior to paddock visits with a date and an estimated time of visit, and both QDAF and CSU personnel will ensure extra care is taken to make sure boots and clothing are free from weed seeds before entering property...
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Catalogue: GRDC Media
Researchers say 23 weed species are now at high risk of developing glyphosate resistance, including several important grasses and damaging environmental weeds like fireweed and parthenium weed... Two hundred weed species were analysed to determine their innate likelihood to evolve and change in response to continued selection by herbicides in projects funded under the recently completed Department of Agriculture, Fisheries and Forestry (DAFF) National Weeds and Productivity Research Program managed by Rural Industries Research & Development Corporation (RIRDC), involving Department of Agriculture, Fisheries & Forestry Queensland and a number of other organisations... Project member, David Thornby, Queensland Department of Agriculture, Fisheries and Forestry (DAFF) says weed managers have a range of weed management tactics available to them for each species...
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Catalogue: GRDC YouTube channel
0.969: Jane Drinkwater: Narrator The problem of Glyphosate resistant summer 3.04: grasses is becoming one of the most pressing issues that growers currently face... 8.509: Australia currently has three species of summer grass confirmed as Glyphosate resistant - liverseed 14.059: grass, windmill grass and awnless barnyard grass... 17.279: Michael Widderick: Principal Research Scientist QDAFF Toowoomba 18.3: Recently there's been a survey conducted just on barnyard grass and it showed that out of 22.73: approximately 80 samples collected randomly across the region, sixty percent of those 27.839: were Glyphosate resistant...
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Catalogue: GRDC Media
Researchers say 23 weed species are now at high risk of developing glyphosate resistance, including several important grasses and damaging environmental weeds like fireweed and parthenium weed... Two hundred weed species were analysed to determine their innate likelihood to evolve and change in response to continued selection by herbicides in projects funded under the recently completed Department of Agriculture, Fisheries and Forestry (DAFF) National Weeds and Productivity Research Program managed by Rural Industries Research & Development Corporation (RIRDC), involving Department of Agriculture, Fisheries & Forestry Queensland and a number of other organisations... Project member, David Thornby, Queensland Department of Agriculture, Fisheries and Forestry (DAFF) says weed managers have a range of weed management tactics available to them for each species...
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Catalogue: Nuffield Scholar Reports
The study is about the management of weeds in those HTGM crops that have been grown overseas... Reduced tillage/no-till/zero-till Conventional agricultural practice involved cultivation prior to sowing of a crop or pasture to kill weeds and prepare the seed bed... but only for a while" Phil Stahlman Weed scientist Kansas State University Going to a total RR system in the corn-soybean rotation has, I believe, made farmers lazy with many just using glyphosate for weed control...
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Catalogue: GRDC Final Reports
1.1) Fitness costs of herbicide resistance in a multiple-resistant L. rigidum biotype The L. rigidum biotype SLR31 exhibits multiple herbicide resistance due to the possession of two mechanisms; an insensitive ACCase target site and enhanced metabolic activity of the detoxifying P450 enzyme family... It is essential that alternate herbicide chemistries are evaluated for their potential to control annual ryegrass and wild radish... As it is likely that the capacity of harvesters will continue to increase, a logical approach to developing an effective weed seed # refer to 'Report disclaimer' grinding system was to focus on processing only the weed seed containing fraction of the chaff...
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Catalogue: GRDC Media
The Weed Seed Wizard was developed in WA and is being brought to Queensland and NSW with support from the Grains Research and Development Corporation (GRDC)... Mr Congreve says Weed Seed Wizard can be fine-tuned to individual farms using local weather data, soil type and management options... "The Weed Seed Wizard can help advisers understand and predict the impact of weed management decisions on crop yield and weed seedbanks."..
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Catalogue: GRDC Final Reports
Results from the study indicated that karrikinolide may be an efficient means of stimulating weed seeds to germinate... Results from the study provide insight into karrikinolide's mode of action, in that karrikinolide appears to be working as a germination stimulant rather than a dormancy breaking agent... Future research and development opportunities associated with karrikinolide involve expanding our knowledge in three key areas: (1) karrikinolide responsive species (2) optimising efficiency of karrikinolide application and (3) karrikinolide mode of action...
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Catalogue: Broadacre Field Crops DAFF QLD
Highly respected throughout the Australian weed scientists' community, the team conducts valuable research into best-practice weed management for central and southern Queensland agriculture, weed ecology and the safe use of herbicides in crops... Over the past decade, the team has quantified risks associated with the development of herbicide resistance in weeds of the northern grain region, and has made recommendations for avoiding and managing weed populations resistant to important herbicides... Unlike previous models produced in other parts of Australia, the model enables simulation of a wide variety of weed species, agronomic practices, and weed control tactics, to help understand and explain the impact of agricultural decision making on the rate of evolution of herbicide resistance...
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