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142 results found
  • The high cost of keeping weeds pressure down
    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

  • The next-gen researcher engineering new herbicides
    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.

  • Research response to dual-resistant ryegrass
    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

  • The future of the double-knock
    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

  • Trials target spiny emex
    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.

  • Diversity is a defence against weeds
    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.

  • Planning and timing the key to hitting summer weeds
    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.

  • Rust fungus trials to control flaxleaf fleabane
    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.

  • Practical tips support safe, effective spraying
    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.

  • National survey shows glyphosate resistance is on the rise
    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

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