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Weeds, 13 Jul 2025
The high cost of keeping weeds pressure down
Grain and cotton growers are spending $3.86 billion a year on control measures to keep weed densities low, according to a national analysis of weeds’ costs
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Weeds, 01 Jul 2025
The next-gen researcher engineering new herbicides
GRDC-supported researchers have innovated the herbicide development pipeline and are developing compounds with new modes of action for crop weeds.
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Weeds, 21 Jun 2025
Research response to dual-resistant ryegrass
Experimental trials are identifying viable solutions to combat newly emergent resistance to both glyphosate and paraquat in annual ryegrass within a small area of the Albany Port Zone
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Weeds, 19 Apr 2025
The future of the double-knock
An expert in weeds management has outlined a potential approach for dealing with glyphosate and paraquat-resistant weeds
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Weeds, 12 Apr 2025
Trials target spiny emex
Investment by the Grains Research and Development Corporation (GRDC) has investigated opportunities to expand lentil production in the Yorke Peninsula by testing viable ways to control spiny emex weeds.
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Weeds, 21 Mar 2025
Diversity is a defence against weeds
A diverse crop sequence can cost-effectively help reduce the annual ryegrass population. From 2014 to 2017, CSIRO's research at Temora, NSW, funded by GRDC, compared three farming systems' effects on the annual ryegrass seedbank. The initial ryegrass population was 1864 plants per square meter. System 1 used a conservative canola-wheat-wheat sequence, System 2 an aggressive canola-wheat-wheat sequence, and System 3 a diverse vetch-canola-wheat-barley sequence. System 3 significantly reduced ryegrass to 204 plants per square meter and yielded better results, with barley outperforming other crops. This study highlights barley's competitiveness in weed suppression and its resilience in dry conditions.
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Weeds, 17 Mar 2025
Planning and timing the key to hitting summer weeds
Timing is a key factor in the control of summer weeds, which should be sprayed with robust rates of herbicide when they are small and actively growing with robust rates of herbicide.
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Weeds, 14 Mar 2025
Rust fungus trials to control flaxleaf fleabane
CSIRO, with the support of GRDC, has embarked on a pioneering initiative to develop biocontrol agents aimed at managing the pervasive agricultural weed flaxleaf fleabane. Recognising the detrimental impact of this weed on crop yields and farm productivity, the research focuses on innovative, sustainable solutions to mitigate its spread.
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Weeds, 09 Mar 2025
Practical tips support safe, effective spraying
Practical tips for responsible herbicide use with optimal calibration of boom sprays and nozzles help to reduce environment and health risks while increasing profits.
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Weeds, 08 Mar 2025
National survey shows glyphosate resistance is on the rise
The latest Australia-wide survey of weeds has painted a concerning picture about increased herbicide resistance among weeds, particularly annual ryegrass