Determining the incidence of herbicide resistance in Australian grain cropping
Investment
Determining the incidence of herbicide resistance in Australian grain cropping
There are currently 47 weed species which have confirmed herbicide resistance status in Australia. These are resistant to 10 different Modes of Action and 30 of these species are known to be weeds in crop production systems.
This investment seeks to further understand the incidence and extent of herbicide resistant weeds. Data from this project will inform investment decisions to develop strategies to manage and prevent resistance and support optimal weed management decisions.
- Project start date:
- 17/08/2020
- Project end date:
- 18/08/2024
- Crop type:
-
- All Crops
- Organisation
- Charles Sturt University
- Region:
- North, South, West
- Project status
-
Active
GRDC News
National survey shows glyphosate resistance is on...
07 Mar 2025
The latest Australia-wide survey of weeds has painted a concerning picture about increased herbicide resistance...
Australia’s number one weed creeps northwards
15 Oct 2024
Growers moving fodder and harvest machinery are encouraged to take extra care to avoid spreading...
Survey prompts fresh call to use multiple...
13 Apr 2023
Annual ryegrass populations across Australia have developed resistance to a wider range of herbicides, sparking...
Stacking tactics for HRZ ryegrass control
26 Jun 2022
Herbicide resistance continues to increase in the southern high-rainfall zone, highlighting the importance of using...
Update papers
- 06 Aug 2024, Innovative strategies for narrowleaf weed management - GRDC
- 30 Jul 2024, Double and triple knock strategies for managing ryegrass - GRDC
- 04 Mar 2024, What is the latest random weed resistance survey telling us about paraquat and 2,4-D? - GRDC
- 13 Feb 2024, Herbicide resistance status of weed species across the cropping regions of New South Wales and Queensland - GRDC
- 29 Aug 2023, Combatting weed resistance – best practice management for tackling stubborn resistance with ryegrass, radish, fleabane plus others in the Vic Wimmera - GRDC
- 28 Aug 2023, Combatting weed resistance – best practice management for tackling stubborn resistance with ryegrass, barley grass plus others in the SA south east - GRDC
- 25 Jul 2023, Strategies for managing annual ryegrass in HRZ's and for using pre-emergent herbicides - GRDC
- 24 Jul 2023, Optimising annual ryegrass control - GRDC
- 17 Jul 2023, Herbicide resistance update – northern region - GRDC
- 27 Jun 2023, Herbicide resistance levels and management of annual ryegrass in Tasmania - GRDC
- 21 Feb 2023, Optimising control of annual ryegrass - GRDC
- 13 Feb 2023, Optimising control of annual ryegrass - GRDC
- 06 Feb 2023, A resistance update on broadleaf weeds in South Australia and Victoria - GRDC
- 15 Aug 2022, Optimum crop-topping timing – getting better ryegrass control - GRDC
- 20 Jul 2022, Dealing with herbicide resistance – what to know in 2022 - GRDC
- 09 Feb 2022, Annual ryegrass weed management and paraquat resistance - GRDC
Podcasts
Update on herbicide resistance in WA weed species - GRDC
16 May 2023Mechelle Owen from AHRI, on herbicide resistance in weed species in Western Australia and the data collected from the GRDC...
Annual ryegrass resistance to pre-emergent herbicides snapshot - GRDC
12 Apr 2022As Dr Peter Boutsalis from the University of Adelaide explains, there's good news on the resistance status of annual ryegrass...