Weeds of National Significance
Department of the Environment and Heritage and the CRC for Australian Weed Management, 2003
ISBN 1 9209 3214 3
About the guide
Prickly acacia is a Weed of National Significance. It is regarded as one of the worst weeds in Australia because of its invasiveness, potential for spread, and economic and environmental impacts.
At present over 6.6 million ha of arid and semi-arid Queensland are infested with prickly acacia, mainly in the Mitchell Grass Downs. Prickly acacia could potentially infest vast tracts of grasslands and woodlands throughout Australia.
The economic impacts of prickly acacia on Queensland's grazing industry are estimated at $5 million per year. Even at medium densities, it halves the primary productivity of grasslands, interferes with stock mustering and restricts stock access to water. Control costs considerably outweigh its benefits as a shade tree and drought fodder.
Department of Agriculture, Fisheries and Forestry
PO Box 53, Cloncurry, Queensland 4824
Tel: (07) 4742 1311
Fax: (07) 4742 1899
Mob: 0427 603 328
|Extent in Australia||Potential distribution|
|QLD, NSW||Could further expand in current locations; plus WA, NT, SA|