Pest plants must be managed because they can have significant impacts on industries and the environment.
Declared pest plants
Pest plants that are a significant threat to agriculture, the natural environment and public health and safety are called declared plants and land owners have a legal responsibility to manage these plants. Our Pest Plant and Animal Control Policy provides guidance to land managers, our staff and other relevant stakeholders in regard to their responsibilities for pest animal and plant control under the Landscape South Australia Act, 2019. The Act sets out the legal framework for:
- banning the sale of declared weeds;
- controlling the movement of declared weeds;
- destroying or controlling infestations of declared weeds; and
- notifying authorities when an infestation is detected.
More information can be found in PIRSA's Declared plants of South Australia - are they on your land? (574kb pdf) or through PIRSA's Biosecurity section.
We undertake a range of regular pest plant control activities. To see what we have been doing lately, take a look at our latest district reports (scroll to end of the page). You can also subscribe to our quarterly newsletter which provides updates on these activities.
We are preparing for spring control of Opuntioid cacti around the Whyalla region. Find out more.
Priority weeds in the Eyre Peninsula region
The weeds that are a priority for us are listed below, in order of priority and includes the action we are focusing on for each species. Given the significant size of the Eyre Peninsula, some species may have different management actions at our district levels (Eastern, Southern & Western) due to their current distribution, potential impacts and feasibility of control.
Common name: Silverleaf nightshade
Scientific name: Solanum elaeagnifolium
Status: Declared - must be controlled, banned from sale
Action: PROTECT SITES
Common name: Gazania
Scientific name: Gazania sp.
Status: Invasive coastal weed
Action: MANAGE SPECIES
Common name: Wild olive
Scientific name: Olea europaea
Status: Declared - must be controlled (only applies to plants not planted or maintained for domestic and commercial purposes).
Action: MANAGE SITES
While the above 16 weeds are those we are focusing on, there are other species that landholders may find that need to be controlled including:
- Bathurst Burr
- Bridal Creeper
- Three corner jack
- Innocent weed
- Lincoln weed
- Skeleton weed
- Creeping knapweed
- Cutleaf mignonette
- Yellow burrweed
- Bladder campion
- Salvation Jane
- Three-horned bedstraw
- Dog rose
- False caper
See the Department of Primary Industries and Region's controlling declared weeds in SA page for more information about weeds in South Australia.