Weed Potential
Control methods include collecting seed-heads in a bag and smaller plants can be dug out with a mattock. Larger plants may be reduced and poisoned or removed with an excavator.They have short strong rhizomes with fibrous roots which are difficult to dig up.This plant reshoots from the base after fire and these shoots can be painted with herbicide to reduce growth.

The spraying of chemicals in waterways has to be carried out with minimal contamination of the water. Where possible apply the chemicals by rubbing them on with a mop or brush.