Determining the extent of herbicide resistance in Australian rice crops

Charles Sturt University

  • Project code: PRO-017451

  • Project stage: Current

  • Project start date: Thursday, December 7, 2023

  • Project completion date: Sunday, August 29, 2027

  • National Priority: RIC-Agronomy and farming systems


Herbicide resistance weeds are a major problem in the cropping regions of Australia with the rice industry no different to any of the other cropping industries in this regard. Identification of the underlying level of resistance in a region or cropping system aids in the understanding of herbicide resistance and in designing strategies for its management. To obtain this information weed seed samples will be collected from across the rice growing regions of Australia as well as from the Rice Growers Mill Laboratories. After collection the weed seed samples will be screened to different herbicides to determine if resistance to those herbicides is present in the samples collected.

Findings of this screening will be provided to the Rice Research Committee, Rice Crop Protection Working Group, government agronomists, chemical companies and reseller and private agronomists.  The individual farmers whose participate by providing fields to be surveyed will be directly informed of the resistance status of weeds collected from their fields relative to their region and the entire industry.



Research Organisation

Charles Sturt University