Chilean needle grass control

Page last updated: Wednesday, 31 August 2016 - 10:45am

Please note: This content may be out of date and is currently under review.

Control methods for Chilean needle grass (Nassella neesiana) a declared pest in Western Australia. Report the presence of this organism before undertaking a control measure.

Report the presence of this pest before undertaking control

Information about this pest can be found on the Chilean needle grass: 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.

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.

Chemical control options

Recommended herbicides

Flupropanate; Glyphosate

Flupropanate (Group J) (various trade names: see APVMA link)

Active ingredient

745g/L flupropanate

Rate of product/10L water

Spot spray 10–30mL

Rate of product/ha



APVMA permit 9792 covers use of this active.

Permit expires 30th Nov 2020.

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

Active ingredient

Glyphosate 360g/L

Rate of product/10L water

Spot spray 20–50mL

Rate of product/ha

6L. Other formulations available. Adjust rates if using these.

Contact information

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