Giant sensitive plant control

Page last updated: Wednesday, 19 September 2018 - 2:27pm

Control methods for giant sensitive plant (Mimosa diplotricha) a declared pest in Western Australia.

REPORT THE PRESENCE OF THIS PEST BEFORE UNDERTAKING CONTROL

Information about this pest can be found on the giant sensitive plant: declared pest page.

Chemical requirements

When using any agricultural chemicals please ensure that you always follow instructions on the label and any permit. Users of agricultural chemical products must always strictly comply with the directions on the label and the conditions of any permit. To view permits or product labels go to the Australian Pesticides and Veterinary Medicines Authority website.

Chemical control options

Chemical control options can be found below. For other methods of control please refer to the aquatic weed control page, and the declared plant control handbook.

Recommended herbicides

  • glufosinate ammonium
  • fluroxypyr
  • dicamba
  • tryclopyr + picloram

Herbicide: Basta® (Group N)

Active ingredient

200g/L glufosinate ammonium

Amount of product/10L water

20-50mL

Rate of product/ha

2-5L

Wetting agent dilution

1:400

Time of application

Apply when actively growing

Remarks

  • Cover all foliage thoroughly
  • Registered for M. invisa (common sensitive plant only)

More information and other control methods

  • Follow-up treatment usually required
  • Dicamba @ 20mL/10L; also effective on M. pudica

Herbicide: Fluroxypyr (Group I)

Active ingredient

200g/L fluroxypyr

Rates of dilution for spot spraying

0.15L/100L water

Amount of product/10L water

  • 50mL for common sensitive (M. pudica)
  • 30mL for giant sensitive plant

Rate of product/ha

1.3-1.5L

Wetting agent dilution

1:400 non-ionic wetting agent or Uptake® spraying oil

Time of application

Actively growing before flowering

Remarks

Will kill legumes

More information and other control methods

  • Aerial application of 3L/ha for M. pigra
  • Also Grazon® DS is registered for sensitive plant
  • Also formulations containing 333 and 400g/L available

Herbicide: Cadence (Group I)

Active ingredient

700g/kg dicamba

Amount of product/10L water

30g

Rate of product/ha

1.430kg -1.7kg/ha registered in Northern Territory for Mimosa pigra

Time of application

Actively growing plants, preferably during the wet season. Retreatment may be necessary to control new germination of seedlings.

More information and other control methods

  • High volume — thoroughly wet all leaves and stems.
  • Basal bark — spray all around base and 25-40cm up the stem. Only apply plants <5cm basal diameter.
  • Cut stump — apply to plants up to 10cm basal diameter. Cut trees as close to ground as possible and spray immediately before sap dries.
  • 2.4L/ha of 500g/L formulation also registered in Northern Territory.

Herbicide: Triclopyr + picloram (Group I) (various trade names: see APVMA link)

Active ingredient

300g/L tryclopyr + 100g/L picloram

Amount of product/10L water

20mL

Wetting agent

Use 100% non-ionic wetting agent such as BS-1000

More information and other control methods

Try to avoid causing leaves to fold up before spraying

Contact information

Pest and Disease Information Service (PaDIS)
+61 (0)8 9368 3080