How to control:
- Dig out or pull small plants.
- Cut stump application: Cut low and treat stumps with (2g metsulfuron/1L water ) or (10mls Tordon Brushkiller®/1L water). All year round.
- Frill and fill: Make deep downward cuts into the sapwood around the base of the tree every 10cm, taking care not to ring bark the plant. Immediately saturate the cuts with (5g metsulfuron/1L water) or (10mls Tordon Brushkiller® /1L water). All year round.
- Spray in Spring-Summer with (5g metsulfuron + penetrant/10L water) or (60ml Tordon Brushkiller®/10L water).
May reoccur from seedbank for many years.
CAUTION: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.
Click here for more information on the herbicides referenced in the control methods, or here for more information on the suggested techniques.
For more information and pictures check out this Auckland Council info page.