Australian Herbicide Resistance Initiative (AHRI)

Zone: H1

Zone H1

The percentage of paddocks in H1 that contain the listed weed species (ryegrass, wild radish, wild oat, brome grass and barley grass) in each survey year (2003, 2010 and 2015). Note that brome and barley grass were surveyed for the first time in 2010.


For the herbicide resistance status of each weed species in zone H1, please follow the links under “Further information” in the sidebar.