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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)
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Resistant weeds identified
Resistance developing
Susceptible
No testing data available
Weed Resistance Key
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.