Witchweed control

Page last updated: Friday, 19 February 2016 - 3:14pm

Please note: This content may be out of date and is currently under review.

Control methods for witchweed (Striga species) declared pests in Western Australia.

Report the presence of this pest if it's legal status is prohibited before undertaking control.

Information about this pest can be found on the witchweed: 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

Phenoxy group (e.g. 2,4-D and dicamba); Imazapyr; Glyphosate; Paraquat

More information

These are parasitic weeds that attach their roots to suitable host plants.

Other control measures

Use maximum label rates of these chemicals to kill and prevent plants from forming seeds.

Once established, eradication is difficult.

Contact information

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