Herbicide evolution and technology

Studying the evolution of herbicide resistance helps create strategies for in-crop weed control

Research Fellow Dr Roberto Busi leads this program to characterise new cases of herbicide resistance. Roberto’s work is integral in assessing the risk of herbicide resistance in our AHRI labs before it is reported from the field. He uses this information to develop herbicide-based weed control strategies.

Roberto’s research focuses on the evolutionary dynamics of herbicide resistance – to discover and understand why and how weeds evolve resistance so fast. His research has examined the impact of using low herbicide rates, and in a world-first, established that persistent use of the pre-emergent herbicide Sakura (pyroxasulfone) at low rates can lead to rapid resistance evolution in annual ryegrass (Lolium rigidum).

First case of glyphosate and paraquat resistant annual ryegrass found in WA crop field

Transfer of resistance alleles from herbicide-resistant to susceptible grass weeds via pollen-mediated gene flow

Hugh Beckie

Weed, insect, disease and antibiotic resistance – we’re all singing from the same hymn book

Webinar: First cases of glyphosate and paraquat resistant ryegrass in WA

Webinar: First cases of glyphosate and paraquat resistant ryegrass in WA

The AHRI Team

AHRI 2021 Wrap-Up

AHRI Director Hugh Beckie reflects on 2021

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