Alert weeds

Alert weeds are declared plants not yet established in South Australia and pose a serious threat.

Landowners must report alert weeds found on their property.

Early detection is important so the plant can be destroyed before it becomes a problem.

Report an alert weed


Fact sheets

Alert weeds and alert weed fact sheets by category

Aquatic weeds

Parasitic weeds

Prickle bush weeds

Semi-aquatic weeds

Stipoid grass weeds

Tall grass weeds

Terrestrial herb weeds


For state policy advice

Biosecurity SA - Invasive Species Unit:

For regional control advice

  • Landscape South Australia: Landscape boards
  • National Pest Alert Hotline (Freecall): 1800 084 881
Page Last Reviewed: 23 Dec 2014
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