Step 1: Enter location

Step 2: Select weed species

Step 3: Select mode of action herbicide group

Step 4: Select sub-category (if applicable)

Step 5: Select year (includes previous years)


Weed Resistance Key

Resistant weeds identified
Resistance developing
No testing data available
Results are based entirely on seed and plant tests that have been submitted to Charles Sturt University and Plant Science Consulting. If no seed or plants have been tested in an area, then no data is available, and does not guarantee the absence of resistant biotypes in that area.