Jump to navigation
Skip to Content
The term 'residual' applies to a number of herbicides that have a long lasting activity in the soil. These herbicides are often applied directly to the soil prior to planting crops, pre-emergent.
In 2021 the Department is conducting over 300 research trials across the state from Kununurra in the north to Esperance in the south.
Wild radish (Raphanus raphanistrum) is highly competitive in crops and can cause a yield loss of 10-90%.