Comparison of alternative mode of action herbicides for the control of Group I resistant wild radish (NSW field experiment 2014)

Abstract

Key findings • To control Group I resistant wild radish, there are several alternative herbicides that can maintain excellent control. These herbicides are generally suited to application in winter cereal crops but some other can be applied in broad leaf winter crops. • Managing herbicide resistant wild radish by simply rotating herbicide mode of actions works well, but if doing this for prolonged periods of time herbicide resistance to other groups is likely. To combat this, it is strongly suggested to undertake harvest weed seed management tactics such as wind‑row burning to extend herbicide effectiveness. • Make herbicide resistance testing a priority on your wild radish populations. Ensure that many herbicide mode of actions are tested so farmers have a better indication of the range of herbicides that should work or not on their wild radish population.