Acacia dealbata Link
Enum.Pl.Hort.Berol. 2:445 (1822)

Conservation Code: Not threatened
Naturalised Status: Alien to Western Australia
Name Status: Current

Brief Description
Amanda Spooner, Friday 18 October 2002

Tree or shrub, 1.5-30 m high, bark smooth grey-brown, deeply corrugated when old; glaucous leaves. Fl. yellow, Aug to Oct. Loamy or granitic soil. Stony slopes, creekbanks.

Distribution

Beard’s Provinces: South-West Province.

IBRA Regions: Jarrah Forest, Swan Coastal Plain, Warren.

IBRA Subregions: Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.

Local Government Areas (LGAs): Albany, Bridgetown-Greenbushes, Busselton, Donnybrook-Balingup, Kalamunda, Kojonup, Manjimup, Nannup, Plantagenet, Swan.

Management Notes (for the Swan NRM Region)
Kate Brown and Karen Bettink, Thursday 8 September 2016

General Biology. Growth form. Shrub/Small tree. Reproduction. Seed, root suckers. Dispersal. Water, bird, ants, soil movement, garden refuse. Time to first flowering. 4-5 years. Toxicity. Can be toxic to stock. Can cause skin irritation in humans. Vegetative regeneration strategy. Resprouts, produces root suckers, stem layering. Woody structure. diffuse porous. Seedbank persistence. Long, 5+ years. Fire response. Fire stimulates mass germination of soil-stored seed. Adult plants will resprout from base and from root suckers following fire.

Additional information. Origin. South east Australia. History of use/introduction. Garden escape.

Suggested method of management and control. Hand pull seedlings. For mature plants apply 250 ml Access® in 15 L of diesel to basal 50 cm of trunk (basal bark), or drill and fill with 50% glyphosate. Older plants can be ringbarked. Monitor site for recruitment from seedbank. Read the manufacturers' labels and material safety data sheets before using herbicides. For further information consult the Australian Pesticides and Veterinary Medicines Authority to determine the status of permits for your situation or state.

Management Calendar

Calendar Type Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Comments
Flowering           O Y Y Y Y Y O  
Fruiting Y O O           O Y Y Y  
Optimum Treatment O O O Y Y Y Y Y Y O O O  

Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.

 

References

  • Brown, K. & Brooks, K. (2002) Bushland Weeds: A Practical Guide to their Management. Environmental Weeds Action Network, Greenwood.
  • Campbell, P.L. (2000) Wattle control. PPRI handbook, No.3, ARC-Plant Protection Research Institute, South Africa.
  • Hussey, B.M.J., Keighery, G.J., Dodd, J., Lloyd, S.G. & Cousens, R.D. (2007) Western Weeds. A guide to the weeds of Western Australia. 2nd Edition. The Plant Protection Society of Western Australia, Victoria Park.
  • Maslin, B.R. (2001) Wattle: acacias of Australia. Australian Biological Resources Study, Canberra. Department of Conservation and Land Management, Perth.
  • Maslin, B.R. & McDonald, M.W. (2003) Acacia dealbata Link subsp. dealbata. Acacia Search, evaluation of Acacia as a woody crop option for southern Australia. : 60-67 Rural Industries Research and Development Corporation also available online at www.worldwidewattle.com/infogallery/utilisation/acaciasearch/pdf/dealbata.pdf.
  • Moore, J.H. & Wheeler, J. (2008) Southern weeds and their control. DAFWA Bulletin 4744.
  • Muyt, A. (2001) Bush invaders of South-East Australia: A guide to the identification and control of environmental weeds found in South-East Australia. R.G. & F.J. Richardson, Melbourne.
  • Navie, S. & Adkins, S. (2008) Environmental Weeds of Australia, An interactive identification and information resource for over 1000 invasive plants. Centre for Biological Information Technology, The University of Queensland.
  • Peltzer, S. (2008) Watch out for weedy wattles. Southcoast NRM, Department of Agriculture and Food.
  • Pemberton, R.W. & Irving, D.W. (2008) Elaiosomes on weed seeds and the potential for myrmecochory in naturalized plants. Weed Science, 38 (6): 615-619.
  • Richardson, D.M. & Klugeb, R.L. (2008) Seed banks of invasive Australian Acacia species in South Africa: Role in invasiveness and options for management. Perspectives in Plant Ecology, Evolution and Systematics, 10 (3): 161-177.
  • Whibley, D.J.E. & Symon, D.E. (1992) Acacias of South Australia. The Flora and Fauna of South Australia Handbooks Committee, Adelaide.

Project information and acknowledgements