Declared plants

To protect Western Australian agriculture the Department of Primary Industries and Regional Development regulates harmful plants under the Biosecurity and Agriculture Management Act 2007.

Plants that are prevented entry into the State or have control or keeping requirements within the State are known as declared pests.

The Western Australian Organism List (WAOL) contains information on the area(s) in which a plant is declared and the control and keeping categories to which it has been assigned in WA.

If you need advice on declared plants please search for articles below in our website or:

Articles

  • This article provides information on aquatic weeds that are declared plants in Western Australia. Prevention is the cheaper option!

  • Floating water chestnut (Trapa species) is a declared pest in Western Australia (WA).

  • Small fruit devil's claw (Martynia annua) is a declared pest in West

  • Penny cress (Thlaspi arvense) is a declared pest in Western Australia (WA).

  • Golden dodder, field dodder, angel's hair, common dodder, strangle vine (

  • Chinee apple, Indian jujube (Ziziphus mauritiana) is a declared pest in Western Australia (WA).

  • Arum lily (Zantedeschia aethiopica) is a declared pest in Western Australia (WA).

  • Calotropis (Calotropis procera) is a declared pest in Western Australia (WA).

  • St. John's wort, klamathweed, goatweed (Hypericum perforatum) is a common weed in the lower southwest of Western Australia (WA).

  • Sida (Sida acuta and Sida cordifolia) are weeds found in the Kimberley region of Western Australia (WA).