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 Management Guides

The seven Landscape Groups in the SA Arid Lands region, in conjunction with district communities have developed district level management guides to best manage the issues caused by priority weeds. The guides 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.

Declared Weeds Quick Reference Guide

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

Related links: African boxthorn

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.

Related links: African Rue

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.

Related links: Athel pine

Bathurst burr

Common name: Bathurst burr

Scientific name: Xanthium spinosum

Status: Declared in SA. Must be controlled

Related links: Bathurst burr

Buffel grass

Common name: Buffel grass

Scientific name: Cenchrus ciliaris and Cenchruspennisetiformis

Status: Declared: must be controlled

Related links:

Pest plants

Common name: Cactus

Scientific name: Opuntia, Cylindropuntia and Austrocylindropuntia spp.

Status: Weed of National Significance. Must be controlled.

Related links:

Carrion Flower

Common name: Carrion flower

Scientific name: Orbea variegata

Status: Declared in SA

Related links: Carrion flower

Fountain grass

Common name: Fountain grass

Scientific name: Cenchrus setaceus

Status: Declared in SA. Not to be sold.

Related links: Fountain grass

Innocent weed

Common name: Innocent weed

Scientific name: Cenchrus longispinus and Cenchrus spinifex

Status: Declared in SA. Must be controlled.

Related links: Innocent weed

Khaki weed

Common name: Khaki weed

Scientific name: Alternanthera pungens

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

Related links: Khaki weed

Pest plants

Common name: Mesquite

Scientific name: Prosopis spp.

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

Related links:

Noogoora burr

Common name: Noogoora burr

Scientific name: Xanthium str umarium

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

Related links: Noogoora burr

Pest plants

Common name: Parkinsonia

Scientific name: Parkinsonia aculeata

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

Related links: Parkinsonia

Prickly acacia

Common name: Prickly acacia

Scientific name: Acacia nilotica subsp. indica

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

Related links: Prickly acacia

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