Seventy-seven plants have been officially declared as weeds under the Weed Management Act 1999. These plants can cause, or have already caused:
Once plants are declared weeds under the Act, there are restrictions on their trade, sale, import, movement and disposal.
Under Section 15 of the Act, a Weed Management Plan must be drawn up for each plant within 12 months of it being declared a weed. These Plans are produced by the Department of Primary Industries, Water and Environment (DPIWE), and go through a public consultation phase before becoming statutory plans under the Act.
The Weed Management Plans set out the restrictions and approaches for weed reduction or eradication. They apply equally to public and private landholders.