Pittosporum undulatum Vent.
Descr.Pl.Nouv. 76,Tab.76 (1802)

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

Brief Description
Amanda Spooner, Wednesday 1 October 1997

Tree, to 5 m high. Fl. cream-white. Creek & river banks.

Distribution

Beard’s Provinces: South-West Province.

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

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

Local Government Areas (LGAs): Albany, Augusta-Margaret River, Capel, Dardanup, Denmark, Manjimup, Murray, Nannup, Subiaco.

Management Notes (for the Swan NRM Region)
Kate Brown and Karen Bettink, Thursday 21 December 2017

General Biology. Growth form. Small tree. Reproduction. Seed. Dispersal. Birds, possums, other mammals, garden refuse. Time to first flowering. 5 years. Vegetative regeneration strategy. Resprouts from base. Woody structure. Diffuse porous. Seedbank persistence. Short, months. Fire response. Fire will kill most adult plants and destroy the soil seed bank. The higher light conditions following fire are not conducive to seedling establishment.

Additional information. Origin. Eastern Australia. History of use/introduction. Garden escape, restoration plantings.

Suggested method of management and control. Hand pull or dig out seedlings and saplings ensuring removal of all roots. Cut to base and paint with 50% glyphosate, stem injection with 50% glyphosate or apply 250 ml Access® in 15 L of diesel to basal 50 cm of trunk (basal bark). Fire could be a useful tool for slowing down the invasion process and carefully targeted control work following fire could lead to eradication of populations. 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 O    
Fruiting           Y Y Y         Mature
Germination   O Y Y Y O              
Optimum Treatment Y Y Y Y Y O O O O 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.
  • Gleadow, R. M. & Indira Narayan. (2007) Temperature thresholds for germination and survival of Pittosporum undulatum: implications for management by fire. Oecologica, 31 (2): 151-157.
  • Gleadow, R.M. (1982) Invasion by Pittosporum undulatum of the forests of central Victoria II. Dispersal, germination and establishment. Australian Journal of Botany, 30: 185-198.
  • Goodland, T.C.R., Healey, J.R. & Binggeli, P. (1998) Control and management of invasive alien woody plants in the tropics. School of Agricultural and Forest Sciences Publication No. 14. University of Wales, Bangor, UK URL: http://www.bangor.ac.uk/~afs101/iwpt/welcome.shtml - Accessed December 2007. School of Agricultural and Forest Sciences Publication No. 14.
  • 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.
  • Mullett, T.L. (2002) The biology of Australian weeds. 41. Pittosporum undulatum Vent. Plant Protection Quarterly, 17 (4): 130-140.
  • 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.
  • Pickard, J. (1984) Exotic plants on Lord Howe Island: distribution in space and time, 1953-1981. Journal of Biogeography, 11: 181-208.
  • Richardson, D.M. & Brink, M.P. (1985) Notes on Pittosporum undulatum in the south western Cape. Veld and Flora, 71: 75-77.
  • Rose, S. (1997) Influence of suburban edges on invasion of Pittosporum undulatum into the bushland of northern Sydney, Australia. Australian Journal of Ecology, 22: 89-90.
  • Rose, S. (1997) Integrating management of Pittosporum undulatum with other environmental weeds in Sydney’s urban bushland. Pacific Conservation Biology, 3: 350-365.
  • Rose, S. & Fairweather, P.G. (1997) Changes in floristic composition of urban bushland invaded by Pittosporum undulatum in northern Sydney, Australia. Australian Journal of Botany, 45: 123-149.
  • Tunbridge, A. & Simmons, D. (2000) Allelopathic effects of sweet Pittosporum Pittosporum undulatum Vent. on the germination of selected native plant species. Victorian Naturalist, 117 (2): 44-50.

Project information and acknowledgements