African rue control

Page last updated: Monday, 20 July 2020 - 2:36pm

Please note: This content may be out of date and is currently under review.

Control methods for African rue (Peganum harmala) a declared pest in Western Australia.

Report the presence of this pest before undertaking control

Information about this pest can be found on the African rue: 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

  • Glyphosate
  • Metsulfuron

Herbicide: Glyphosate (Group M) (various trade names: see APVMA link)

Active ingredient

  1. Glyphosate 360g/L
  2. Glyphosate 450g/L      
  3. Glyphosate 540g/L

Other concentrations of glyphosate available

Rate of product/10L water

  1. Glyphosate 360g/L = 100mL
  2. Glyphosate 450g/L = 80mL
  3. Glyphosate 540g/L = 65mL

Adjust rates for other concentrations of glyphosate

Wetting agent

Non-ionic @ 1mL/L of water

Time of application

Apply to foliage at bud stage


  • Repeat applications as necessary.
  • There are other formulations available and if using these, adjust rates.
  • Tebuthiuron also known to be active on the plant.

Herbicide: Metsulfuron (Group B) (various trade names: see APVMA link)

Active ingredient

Metsulfuron methyl 600g/kg

Rate of product/10L water


Wetting agent

Non-ionic @ 10mL/10L water or Pulse® @ 20mL/10L water

Time of application

Actively growing plants


  • Spot spraying treatment.
  • Avoid spraying non target plants.

Contact information

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