Mesquite

Prosopis spp.
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See it - Report it

Early detection is vital to stop Mesquite becoming established in South Australia.
If you see this weed, please report it to the National Pest Alert Hotline (Freecall) 1800 084 881.

Freecall 1800 084 881

Weed profile

  • Perennial
  • Shrub
  • Tree
  • Reportable
  • Hinders movement
  • Habitat: native vegetation, rangelands

Impact

Invades rangelands, form spiny thickets.

Description

  • Trees or large shrubs.
  • Bipinnate leaves with thorns at base.
  • Long, dense clusters of yellow flowers resembling wattles.
  • Seeds in large, lobed pods.

Control options

  • chemical control

    triclopyr (300g/L) + picloram (100g/L)

    When: Spot spray, spring - summer

    Where: Rangelands and native vegetation.

  • chemical control

    triclopyr (240g/L) + picloram (120g/L)

    When: Cut stump, any time

    Where: Rangelands and native vegetation.

  • chemical control

    triclopyr (240g/L) + picloram (120g/L)

    When: Basal bark, any time

    Where: Rangelands and native vegetation.

triclopyr (300g/L) + picloram (100g/L)

Application Method: Spot spray

Application Rate: 350mL/100L

Product Name: Grazon DS®

Herbicide Group: 4

Situation: Rangelands and native vegetation.

Timing: Spot spray, spring - summer

Comments: Do not spray plants bearing pods.

Legal Status: Product and use are registered, but this weed is on the label for NSW, NT, Qld and WA only.

triclopyr (240g/L) + picloram (120g/L)

Application Method: Cut stump

Application Rate: 1L/60L biodiesel or diesel

Product Name: Access®

Herbicide Group: 4

Situation: Rangelands and native vegetation.

Timing: Cut stump, any time

Comments: Suitable for large trees. Apply herbicide immediately after cutting the stump.

Legal Status: Product and use are registered, but this weed is not on the label.

triclopyr (240g/L) + picloram (120g/L)

Application Method: Basal bark

Application Rate: 1L/60L biodiesel or diesel

Product Name: Access®

Herbicide Group: 4

Situation: Rangelands and native vegetation.

Timing: Basal bark, any time

Comments: Suitable for shrubs and small trees. For smaller plants and shrubs spray the trunk from the ground up to 30cm. For large trees spray from the ground up to 100cm.

Legal Status: Product and use are registered, but this weed is not on the label.

Legal requirements in each region

To find out which landscape region you're in visit the NatureMaps website.
Alinytjara Wiluṟara
Eyre Peninsula
Green Adelaide
Hills and Fleurieu
Kangaroo Island
Limestone Coast
Murraylands and Riverland
Northern and Yorke
South Australian Arid Lands