Mimosa bush control

Access all the information needed for control of this noxious weed, including weed identification, herbicide application and spray timings.


Mimosa bush description

Mimosa bush identification

Mimosa bush is a rounded shrub or small tree generally growing 1–3 m tall. It often forms thorny thickets, and is nearly always multi-stemmed. The branches grow in a zigzag shape and are usually a grey-brown colour with prominent white spots.

Leaves are a ferny type, with one to six pairs of leaf ‘branches’ each with five to 20 pairs of narrow, rounded leaflets 4–8 mm long. Leaves are sometimes more of a yellowish green than a pure green. Thorns are found in pairs at the base of each leaf and can grow up to 10 cm long.

The flowers are round, golden yellow to orange, about 1 cm across, and grow on stalks at the base of each leaf. Flowers develop into clusters of cigar-shaped pods, slightly curved and up to 6 cm long. The pods are dark brown or black and woody at maturity.

Mimosa bush can spread readily and grow quickly. It can be a considerable nuisance during mustering and can also hinder stock access to water.

Mimosa bush control

Controlling mimosa bush

For control of mimosa bush, in all situations, use Access at 1 L/60 L of diesel or Biosafe, or Starane Advanced at 1.8 L/100 L of diesel distillate as a basal bark application to obtain optimum results. Do not treat during periods of drought stress or when plants are not actively growing.

Herbicides for control of mimosa bush

Product#Method of applicationRate*State
Access® Herbicide Basal bark and Cut stump 1:60 with diesel or Biosafe§ All
Starane® Advanced Herbicide Basal bark and Cut stump 1.8 L/100 L of diesel distillate All
Lontrel® Advanced Herbicide Foliar spray 250 mL/100 L of water (Permit 14929) NSW

# Note: Preferred product option in bold.  * Consult label for details of growth stage and use, especially where range of rates is given.  § Biosafe – trademark used under licence, Victorian Chemical Co Pty Ltd.

Treatment timing

Timing for mimosa bush control

Mimosa bush needs to be actively growing at application.

Access® Herbicide
Starane® Advanced Herbicide
Key: Best time to spray/treat Can spray/treat if conditions are suitable Do not spray/treat