grass roots community organisation that aims to improve natural condition of the derwent catchment

Canary Broom

Disclaimer

The following page is a brief summary of information available on the DPIPWE website regarding Canary Broom control. For more information view here

Non-chemical control

Physical removal

  • Small plants can be hand pulled or grubbed in spring when the ground is soft.
  • Cutting seedlings when they are 5 to 10 cm high can provide effective control of regenerating plants.
  • Larger shrubs should be cut close to ground level and the stumps painted with herbicide.
  • Dense thickets can be slashed with a brushcutter and regrowth sprayed with herbicide.

Cultivation

  • Pasture improvement is the best method of control for Broom infested pastures on arable land where large plants can be mechanically removed, followed by repeated cultivation, pasture establishment and grazing.
  • Some dense infestations have been destroyed by bulldozing and repeated cultivation over two years. However, soil disturbance will move seed from the surface and distribute it through the soil profile and may in some instances make long term eradication more difficult.

Burning

  • Fire can be used to remove mature bushes and to reduce the Broom seed bank in the soil.
  • Heating of the soil by fire can stimulate the germination of up to 90% of seed in the soil. Regeneration after fire can then be treated with herbicide or by hand weeding.
  • When pasture species cannot be established on burned areas (e.g. stony ground, creek banks), or regeneration of native species is required (conservation areas and bushlands), do not use fire to remove Broom.

Grazing

  • Sheep and goats will graze Broom seedlings and flowers and assist in preventing infestations.

Biological control

  • Biological control agents for English Broom that have been released in Tasmania include the twig mining moth and the broom bud psyllid.
  • For more information on biological control programs in Tasmania contact the Tasmanian Institute of Agriculture.

Native vegetation

  • In native vegetation, preventing ground disturbance will help reduce the rate of invasion by brooms.
  • Do not burn Broom in native vegetation. Bushes should be removed with minimal soil disturbance.

Chemical control

Use herbicides in accordance with label. Refer to APVMA permit PER13160 where herbicide is to be used in non-cropping and bushland areas

Application method

1. Foliar spray

  • Stage of growth - spring to mid-summer
  • Location - Pasture and non-cropping
  • Suggested herbicide - Roundup®Biactive™

2. Basal bark and cut stump/cut and paste application

  • Stage of growth - actively growing
  • Location - Pasture and non-cropping
  • Suggested herbicide - Garlon®600, Roundup®Biactive™