Weeds

Weeds pose a serious risk for primary producers as they can impact on market access and agricultural production.

In 2006/07, each Western Australian agricultural business spent an average of $29 376 ($341 million total) on weed control (Australian Bureau of Statistics).

Weed control is a shared responsibility between landholders, grower groups, biosecurity groups and the Department of Primary Industries and Regional Development.

To protect WA’s agriculture, the department:

  • works with landholders, grower groups, community groups and biosecurity groups
  • regulates weeds under the Biosecurity and Agriculture Management Act 2007
  • provides a weed identification service
  • provides a predictive simulation tool called weed seed wizard
  • provides information on weed control, crop weeds, regulated/declared plants and herbicides
  • contributes to social science through weedwatcher.

For advice on weeds search our website, the Western Australian Organism List or contact our Pest and Disease Information Service (PaDIS).

For diagnostic services, please contact our Diagnostic Laboratory Services.

Articles

  • This article provides information on aquatic weeds that are declared plants in Western Australia. Prevention is the cheaper option!

  • Mintweed (Salvia reflexa) is an uncommon weed in Western Australia (WA). This article describes the nature of the plant with links to control methods.

  • Field bindweed (Convolvulus arvensis) is an uncommon weed in Western Australia (WA). This article describes the nature of the plant with links to control methods.

  • Floating water chestnut (Trapa species) is a declared pest in Western Australia (WA).

  • Small fruit devil's claw (Martynia annua) is a declared pest in West

  • Roly poly, also known as prickly saltwort or tumbleweed (Salsola australis), is a native species found throughout Australia.

  • In Western Australia's Mediterranean-type climate, the survival of pests and diseases over summer is often critical in determining pest outbreaks and disease epidemics in broadacre crops.

  • Penny cress (Thlaspi arvense) is a declared pest in Western Australia (WA).

  • Golden dodder, field dodder, angel's hair, common dodder, strangle vine (

  • Chinee apple, Indian jujube (Ziziphus mauritiana) is a declared pest in Western Australia (WA).

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