contents of this publication. 1. Introduction This national threat abatement plan (TAP) has been developed to address the key threatening process ‘Dieback caused by the root-rot fungus Phytophthora cinnamomi, is listed under the Commonwealth Environment
Phytophthora species). Research action 2 Increase understanding of factors affecting pathogen distribution and expression (including climate change). Australian Government, state and territory governments, research organisations and industry Medium priority Medium term Material on factors affecting pathogen distribution and expression is published. Further research is conducted into the mechanisms of spread and survival of P. cinnamomi, assessing its long term direct and indirect impacts in the of priority ecosystems it affects. Research action 3 Undertake susceptibility/natural resistance screening of priority species. State and territory governments, research organisations and industry Medium priority Medium term Susceptibility screening of priority species is undertaken at appropriate facilities plant material from ex situ programs (where available). Infested sites are monitored for resistant individuals or populations to enable the sourcing of material for resistance screening. Research action 4 Develop improved techniques for diagnosis of P. cinnamomi infestation, e.g. building on existing efforts for detection via water sampling, testing large volumes of soil (or quarried material) or remote methods such as use of digital imagery. State and territory governments, research organisations and industry Very high priority Medium term Rapid diagnosis systems for identifying P. cinnamomi infestations are evaluated for use in natural ecosystems. Cost effective and accurate methods for the rapid diagnosis of P. cinnamomi species are available. Research action 5 Assess current disease management practices and explore scope for improvement. Australian Government, state and territory governments and research organisations High priority Medium term Methods to eradicate P. cinnamomi from small, infested sites are identified and assessed for their relative efficacy. The efficacy of phosphite in the control of P. cinnamomi across a range of susceptible ecological communities is determined.
Claypans of the Swan Coastal Plain CE WA Corymbia calophylla - Kingia australis woodlands on heavy soils of the Swan Coastal Plain E WA Corymbia calophylla - Xanthorrhoea preissii woodlands and shrublands of the Swan Coastal Plain E WA Cumberland Plain shale woodlands and transition forest CE NSW Eastern Stirling Range montane heath and thicket E WA Eastern Suburbs Banksia scrub of the Sydney Region E NSW Gippsland Red Gum (Eucalyptus tereticornis subsp. mediana) grassy woodland and associated native grassland CE Vic. Grassy Eucalypt woodland of the Victorian Volcanic Plain CE Vic. Lowland grassy woodland in the South East Corner Bioregion CE NSW/ACT/Vic. Lowland rainforest of subtropical Australia CE Qld/NSW Monsoon vine thickets on the coastal sand dunes of Dampier Peninsula E WA New England Peppermint (Eucalyptus grassy woodlands CE Qld/NSW Peppermint Box (Eucalyptus odorata) grassy woodland of South Australia CE SA River ironstone association E WA Sedgelands in Holocene dune swales of the southern Swan Coastal Plain E WA Shale/sandstone transition forest E NSW Shrublands and woodlands of the eastern Swan Coastal Plain E WA Shrublands on southern Swan Coastal ironstones E WA