The Woody Weed Tech Sheets contain all the information you need to treat individual weeds in your paddock. There is a tech sheet dedicated to each significant weed in Australia.
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Access all the information needed for control of this noxious weed, including weed identification, herbicide application and spray timings.
Corteva Website Woody Weed Control GuideWeed Identification
The most successful agents in Australian history, namely the cactoblastis moth, cochineal insect and a mealy bug, continue to keep cacti under control; however, not all biological agents attack all cacti.
How to kill cacti
Different application techniques may be used to treat different cacti. Access used at 1 L/60 L of diesel or Biosafe applied as an overall spray gives effective control of most cacti. This is the best treatment for quick and economical control of small (seedling) cacti.
Using Grazon® Extra at 500 mL/100 L of water as a foliar spray will give slow burn down and regrowth may occur, so follow-up application may be necessary. Tordon® RegrowthMaster at 2.5 L/100 L of water will give effective control of harrisia cactus.
Herbicides for killing cacti
* Consult label for details of growth stage and use, especially where range of rates is given.
Timing for killing cacti
Treatment should only be carried out when cacti are actively growing. Do not treat during hot, dry summer periods.