Eradication
Difficult to eradicate due to substantial woody root system. Control can include registered herbicides such as Garlon, Brush-Off, Grazon or Roundup used as a diluted foliar spray. Follow all directions on the label.
Mechanical removal can work, however the ability of the plant to re-shoot from disturbed roots will make eradication require several treatments.
References
Robinson, L. (1991). Field Guide to the Native Plants of Sydney. 2nd ed. Kangaroo Press, Roseville.