Mimosa bush (Vachellia farnesiana)

Profile

Impact

It has invaded grasslands in the north-east of NSW and is a major weed in some local areas. 

Description

Mimosa bush is a sparsley-leaved shrub 1-4 m high. Leaves are feathery leaflets 4-9mm long. Flowers are bright yellow and pods are black, woody, curved, 5-7 cm long. 

This plant is different from Mimosa pigra, which is a bigger tree growing in northern Australia. 

References

Cunningham G.M., Mulham W.E., Milthorpe P.L. and Leigh J.H. ( 1992). Plants of western New South Wales. (Inkata Press, Melbourne).

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Control

Herbicide options

WARNING - ALWAYS READ THE LABEL
Users of agricultural or veterinary chemical products must always read the label and any permit, before using the product, and strictly comply with the directions on the label and the conditions of any permit. Users are not absolved from compliance with the directions on the label or the conditions of the permit by reason of any statement made or not made in this information. To view permits or product labels go to the Australian Pesticides and Veterinary Medicines Authority website www.apvma.gov.au

See Using herbicides for more information.


PERMIT 14929 Expires 30/10/2019
Clopyralid 300 g/L (Lontrel®)
Rate: 500mL in 100 L of water
Comments: High volume foliar application. Apply to actively growing plants in full leaf. Add a surfactant.
Withholding period: 1-12 weeks (see label).
Herbicide group: I, Disruptors of plant cell growth (synthetic auxins)
Resistance risk: Moderate


PERMIT 13891 Expires 31/03/2023
Tebuthiuron 200 g/kg (Graslan®)
Rate: 2 g per square metre
Comments: Read and follow permit and label instructions thoroughly
Withholding period: Nil.
Herbicide group: C, Inhibitors of photosynthesis at photosystem II (PS II inhibitors)
Resistance risk: Moderate


Fluroxypyr 333 g/L (Starane™ Advanced)
Rate: 1 L in 55 L of Diesel
Comments: Basal bark application
Withholding period: 7 days.
Herbicide group: I, Disruptors of plant cell growth (synthetic auxins)
Resistance risk: Moderate


Triclopyr 240 g/L + Picloram 120 g/L (Access™ )
Rate: 1.0 L per 60 L of diesel
Comments: Cut stump/basal bark application.
Withholding period: Nil
Herbicide group: I, Disruptors of plant cell growth (synthetic auxins)
Resistance risk: Moderate


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Legal requirements

Mimosa bush (Vachellia farnesiana) is not declared in NSW under the Noxious Weeds Act 1993.

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Reviewed 2015