Weeds of National Significance

To help focus national efforts to address weed problems in Australia, a list of Weeds of National Significance was compiled. Plant species were selected on the basis of their invasiveness and impact characteristics, their potential and current area of spread and their primary industry, environmental and socioeconomic impacts.

In Western Australia many Weeds of National Significance are also declared pests under the Biosecurity and Agriculture Management Act 2007

To protect Western Australia’s agriculture the Department of Agriculture and Food, Western Australia:

  • regulates weeds under the Biosecurity and Agriculture Management Act 2007
  • provides a weed identification service
  • provides information on weed control, crop weeds, regulated/declared plants and herbicides.

If you need advice on a Weeds of National Significance in Western Australia please search our website, search our Western Australian Organism List or contact our Pest and Disease Information Service (PaDIS). 

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