Pest plants

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. The Landscape South Australia Act 2019 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 Declared plants of South Australia - are they on your land? (574kb pdf) or through Biosecurity SA.

Control activities

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. 

Priority weeds in the Eyre Peninsula region

Buffel grass

Common name: Buffel grass
Scientific name: Cenchrus ciliaris
Status: Declared: must be controlled, banned from sale
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Boneseed

Common name: Boneseed
Scientific name: Chrysanthemoides monilifera
Status: Declared: must be controlled, banned from sale
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African boxthorn

Common name: African boxthorn
Scientific name: Lycium ferocissimum
Status: Declared: must be controlled, banned from sale.
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African lovegrass

Common name: African lovegrass
Scientific name: Eragrostis curvula
Status: Declared: must be controlled, banned from sale.
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Bridal veil

Common name: Bridal veil
Scientific name: Asparagus declinatus
Status: Declared: must be controlled, banned from sale
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Bridal creeper

Common name: Bridal creeper
Scientific name: Asparagus asparagoides and Asparagus declinatus
Status: Declared: must be controlled, banned from sale
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Carrion flower

Common name: Carrion flower
Scientific name: Orbea variegata
Status: Declared: must be controlled, banned from sale
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Fountain Grass

Common name: Fountain Grass
Scientific name: Pennisetum setaceum
Status: Declared: must be controlled, banned from sale
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Gazania

Common name: Gazania
Scientific name: Gazania sp.
Status: Invasive coastal weed
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Gorse

Common name: Gorse
Scientific name: Ulex europaeus
Status: Declared: must be controlled, banned from sale
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Italian buckthorn

Common name: Italian buckthorn
Scientific name: Rhamnus alaternus
Status: Priority
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Silverleaf nightshade

Common name: Silverleaf nightshade
Scientific name: Solanum elaeagnifolium
Status: Declared: must be controlled, banned from sale
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Aleppo pine

Common name: Aleppo pine
Scientific name: Pinus halepensis
Status: Declared
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Khaki weed

Common name: Khaki weed
Scientific name: Alternanthera pungens
Status: Declared: must be controlled, banned from sale
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Polygala

Common name: Polygala
Scientific name: Polygalaceae
Status: Priority
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Caltrop

Common name: Caltrop
Scientific name: Tribulus terrestris
Status: Declared: must be controlled, banned from sale
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Opuntioid cacti, Prickly Pear

Common name: Opuntioid cacti, Prickly Pear
Scientific name: Opuntia sp.
Status: Declared: must be controlled, banned from sale
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Wild olive

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).
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Blackberry

Common name: Blackberry
Scientific name: Rubus fruticosus
Status: Declared: must be controlled, banned from sale.
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Parkinsonia

Common name: Parkinsonia
Scientific name: Cercidium
Status: Declared: must be controlled
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Salvation Jane

Common name: Salvation Jane
Scientific name: Echium plantagineum
Status: Declared: banned from sale
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Mesquite

Common name: Mesquite
Scientific name: Prosopis
Status: Declared: must be controlled
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Bathurst burr

Common name: Bathurst burr
Scientific name: Xanthium spinosum
Status: Declared: must be controlled, banned from sale
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Flax-leafed broom

Common name: Flax-leafed broom
Scientific name: Genista linifolia
Status: Priority
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Cutleaf mignonette

Common name: Cutleaf mignonette
Scientific name: Reseda lutea
Status: Declared: must be controlled, banned from sale
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Cape tulip

Common name: Cape tulip
Scientific name: Moraea flaccid and Moraea miniata
Status: Declared: must be controlled, banned from sale
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