Jointed goatgrass control

Page last updated: Monday, 8 February 2016 - 5:39pm

Please note: This content may be out of date and is currently under review.

Control methods for jointed goatgrass (Aegilops cylindrica) a declared pest in Western Australia.

Report the presence of this pest before undertaking control

Information about this pest can be found on the jointed goatgrass: 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 jointed goatgrass: what you should know page.

Chemical control options

Recommended herbicides

Glyphosate​; Diquat + paraquat; Atrazine; Raptor®

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

Active ingredient

Main products have 360, 450, 490, 500, 540g/L & 680 and 840g/kg glyphosate

Rate of product/ha

  • 360g (active ingredient) = 625mL
  • 450g (active ingredient) = 500mL
  • 680g (active ingredient) = 330g

Time of application

  • For plants less than three weeks old and spraying followed by cultivation.
  • Double these rates if no cultivation follows spraying.

Wetting agent

  • Add a non-ionic surfactant at label rates, usually 100–250mL/100L water.
  • If plants stressed or hard water is being used add ammonium sulphate at 2% volume of water.

More information

Because jointed goatgrass is genetically similar to wheat it will behave in a similar manner, although it may produce seeds that can survive for up to five years.

Other control measures

Grazing, spraying or slashing to prevent seed formation is essential. The product Spray.Seed at 1-2L/ha will give similar results.

Herbicide: Atrazine (Group C) (various trade names: see APVMA link)

Active ingredient

500g/L, 600g/L and 900g/kg atrazine

Rate of product/ha

  • Canola: triazine tolerant:
    • 2–4L pre-sowing or post sowing pre-emergent
    • 1–2L post–sowing
  • Lupins – atrazine (0.5–1L) + simazine (0.5-1L) (read label for warning regarding application to sandy soils)
  • Roadsides 6L

Time of application

Apply to moist soils


Adjust rates for 600 and 900g formulations

Herbicide: Raptor® (Group B)

Active ingredient

Imazamox 700g/kg

Rate of product/ha

45–50g/ha for legume pastures

Time of application

From third trifoliate leaf to prior to flowering

Wetting agent

Hasten or Kwickin @ 500mL/100L water

More information

  • The addition of ammonium sulphate (Liquid ammo or Liase) @ 2% volume of spray may increase the activity of the spray.
  • A withholding period of seven days applies to pastures.

Contact information

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