The identification of target-site-based herbicide resistance in another polyploid weed species provides an opportunity for closer examination of how rapidly resistance evolves in these species under field conditions.
Lolium rigidum (annual ryegrass) is a species that is prone to evolve resistance to a wide range of herbicide modes of action. Rapid detection of herbicide-resistant weed populations in the field can aid farmers to optimise the use of effective herbicides for their control.