Prosopis L. species
Mesquite is a State prohibited weed
State prohibited weeds are the highest category of declared noxious weeds in Victoria.
By definition they are either not yet in Victoria, or are here in small numbers, where their eradication is still possible.
All sightings should be reported to Agriculture Victoria immediately by calling 136 186 or emailing firstname.lastname@example.org.
Why is it important to report mesquite sightings to Agriculture Victoria
Mesquite is a threat because of its impact on primary production and the environment. It is an aggressive competitor which invades grazing land, causes loss of grass cover and inhibits stock access to waterholes.
It is spread mainly by seed, through grazing or livestock movement, contaminated machinery, or flood waters. Established plants are long-lived, can produce abundant seed and withstand severe water stress.
Mesquite is very hardy and actively grows during prolonged drought.
Mesquite is native to northern South America, Central America and southern United States. It was introduced into Australia for stock food, shelter and erosion control, and four species and several hybrids of mesquite have been found.
In Victoria, small isolated infestations have been recorded in northern and north-west rural areas of the state.
How to identify mesquite
Mesquite species are usually deciduous and may be small trees or shrubs, varying in height from 1 m to 15 m.
Branches have a zig-zag appearance.
Leaves are bright green and fern-like. A pair of spines up to 7.5 cm long is usually present above each leaf stalk on the stem.
Flowers are green-yellow and arranged in dense spike-like or 'lambs tail' clusters at branch ends..
Flowers appear in spring to summer.
Seed pods are up to 20 cm long, containing 5–20 seeds.
What should you do if you find mesquite?
If you think you have seen mesquite, please contact Agriculture Victoria on 136 186 or email email@example.com.
Please do not attempt to treat or dispose of this weed yourself. Agriculture Victoria will treat, remove and dispose of mesquite safely, at no cost to the land owner.