Hymenachne control

Page last updated: Saturday, 28 September 2019 - 12:11pm

Please note: This content may be out of date and is currently under review.

Control methods for Hymenachne (Hymenachne amplexicaulis) a declared pest in Western Australia.


Information about this pest can be found on the Hymenachne: 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 (Group M)
  • Haloxyfop (Group A)

Herbicide: Weedmaster Duo

Active ingredient

360g/L glyphosate as the isopropyl amine and mono ammonium salts

Rate of product/ha

Maximum rate 6-9L. Spot spraying rate 200mL/10L water

Herbicide: Haloxyfop (various trade names: see APVMA link)

Active ingredient

Haloxyfop-R 520g/L as the methyl ester

Rate of product/ha

 400 - 800mL

More information and other control method

  • Apply when actively growing
  • Use surfactant approved for aquatic situations
  • Do not apply to weeds growing in or over-flowing water in permanent waterways

Contact information

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