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

  • Control methods for apple of Sodom (Solanum linnaeanum) a declared pest in Western Australia.

  • The Pest and Disease Information Service (PaDIS) provides advisory and identification services on animal and plant pests, weeds and diseases that impact Western Australia's agriculture and food ind

  • The Weed Seed Wizard is a computer simulation tool that uses paddock management information to predict weed emergence and crop losses.

  • The Transforming Regional Biosecurity Response forums held in October 2016 brought together community, industry and government to develop a collaborative approach to 

  • In poor growing seasons, crops may not be good enough to harvest.  Managers need to make some tough decisions, after assessing feed value for livestock, potential weed seed set, level of herbicide

  • Different weed management options can be explored using the Weed Seed Wizard.

  • The Weed Seed Wizard is a computer simulation tool that helps you understand and manage weed seedbanks on your farm.

  • Hyssop loosestrife (Lythrum hyssopifolia) is a widely distributed weed in the south west of Western Australia.

  • Summer weeds can rob subsequent crops of soil nitrogen and stored soil water. They can also reduce crop emergence by causing physical and/or chemical interfence at seeding time.

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

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