Harrisia cactus contol

Page last updated: Thursday, 20 September 2018 - 11:30am

Control method for Harrisia cactus (Harrissia martinii) a declared pest in Western Australia.

REPORT THE PRESENCE OF THIS PEST BEFORE UNDERTAKING CONTROL

Information about this pest can be found on the Harrisia cactus: 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 declared plant control handbook.

Recommended herbicides

When actively growing

  • Triclopyr
  • Triclopyr + picloram

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

Active ingredient

600g/L triclopyr

Amount of product/10L water

300mL

Rate of product/ha

Not recommended

Time of application

When actively growing

Remarks

Thorough coverage necessary

More information and other control methods

  • Grub individual plants. Ensure that no slabs are left as they will regenerate new root systems. Chemicals other than Garlon™ 600 have given poor control.
  • A 755g/L formulation also available

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

Active ingredient

300g/L triclopyr + 100g/L picloram

Amount of product/10L water

50mL

Rate of product/ha

Not recommended

Wetting agent dilution

Non-ionic such as BS-1000 @ 1:1000

Time of application

When actively growing

Remarks

Thorough coverage necessary

More information and other control methods

A similar product Access™ is also effective @ 160mL in 10L distillate. Triclopyr(200g/L) + picloram(100g/L registered in QLD at 2.5L/100L water as a high volume treatment. Treatment should start from end of each stem and finish at the centre of the plant. Complete coverage of plants is essential.

Contact information

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