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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
  • notifying authorities when an infestation is detected.

District weed strategies

The six Landscape Groups in the SA Arid Lands region, in conjunction with district communities have developed district level strategies to manage priority weeds. The five-year strategies identify priority weeds, outline management actions to reduce the current and potential impacts and detail current best practice control methods, surveying and monitoring activities.

Find out more about Landscape Groups and the work of the SA Arid Lands Landscape Board.

Priority weeds in the South Australian Arid Lands region

African boxthorn

Common name: African boxthorn

Scientific name: Lycium ferocissimum

Status: Weed of National Significance. Must be controlled, banned from sale, restriction of movement on road

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African rue

Common name: African rue

Scientific name: Peganum harmala

Status: Declared: must be controlled, banned from sale.

Notify: must notify Landscape SA if found.

Fact sheet

Athel pine

Common name: Athel pine

Scientific name: Tamarix aphylla

Status: Weed of National Significance. Must be controlled within 100m of a watercourse.

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Bathurst burr

Common name: Bathurst burr

Scientific name: Xanthium sponosum

Status: Declared in SA. Must be controlled

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Buffel grass

Common name: Buffel grass

Scientific name: Cenchrus ciliaris

Status: Declared: must be controlled

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Pest plants

Common name: Cactus

Scientific name: Opuntia, Cylidropuntia and Austrocylindropuntia spp.

Status: Weed of National Significance. Must be controlled.

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Carrion Flower

Common name: Carrion Flower

Scientific name: Orbea variegata

Status: Declared in SA

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Date palm

Common name: Date palm

Scientific name: Phoenix dactylifera

Status: Not declared: poses risk around watercourses

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Fountain grass

Common name: Fountain grass

Scientific name: Cenchrus setaceus

Status: Declared in SA. Not to be sold.

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Innocent weed

Common name: Innocent weed

Scientific name: Cenchrus longispinus and Cenchrus spinifex

Status: Declared in SA. Must be controlled.

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Khaki weed

Common name: Khaki weed

Scientific name: Alternanthera pungens

Status: Declared in SA. Must be controlled and Landscape Group notified.

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Pest plants

Common name: Mesquite

Scientific name: Prosopis

Status: Weed of National Significance & Alert Weed. Must be controlled and Landscape Group notified

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Noogoora burr

Common name: Noogoora burr

Scientific name: Xanthium str umarium

Status: Declared in SA. Must be controlled and Landscape group notified.

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Pest plants

Common name: Oleander

Scientific name: Apocynaceae

Status: Declared: must be controlled.

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Pest plants

Common name: Parkinsonia

Scientific name: Cercidium

Status: Weed of National Significance & Alert Weed. Must be controlled and Landscape group notified.

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Pepper tree

Common name: Pepper tree

Scientific name: Schinus

Status: Not declared: poses risk around watercourses.

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Prickly acacia

Common name: Prickly acacia

Scientific name: Acacia nilotica

Status: Weed of National Significance. Must be controlled and Landscape group notified

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