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

  • Introducing new plants to an area can have positive and negative effects on the environment, economy and community.

  • Mimosa, giant sensitive tree, catclaw plant or bashful plant (Mimosa pigra) is a declared pest in Western Australia (WA).

  • Sagittaria (Sagittaria platyphylla) is a declared pest in Western Australia (WA).

  • Ragwort, stinking willie, St James wort, tansy ragwort (Senecio ja

  • Physic nut, Barbados nut, curcas bean, purge nut, purging nu

  • Kochia, summer cypress (Bassia scoparia) is a declared pest in Western Australia (WA).

  • Hydrocotylwater pennywort, hydrocotyle, floating marshpennywort, spaghetti weed, grote waternavel (

  • Horsetail, common horsetailbottlebrush, field horsetail, horse pipes, mare's tail, snake grass, shave grass, scouring rush

  • Hoary cress, white weed, white top (Lepidium draba, formerly Cardaria draba) is a declared pest in Western Australia.

  • Purple flower devil's claw (Proboscidea louisianica) is a declared p

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