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Pathogenicity of Phytophthora multivora to Eucalyptus gomphocephala and E. marginata

Scott, P.M., Barber, P., Jung, T., Shearer, B.L., Hardy, G.E.St.J. and Burgess, T.I. (2009) Pathogenicity of Phytophthora multivora to Eucalyptus gomphocephala and E. marginata. In: APPS 2009 Plant Health Management: An Integrated Approach, 29 Sept - 1 Oct, Newcastle.

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    Abstract

    Since the early 1990s there has been a significant decline of E. gomphocephala, and more recently E. marginata, in the tuart forest in tuart woodland in Yalgorup National Park SW Western Australia, although no satisfactory aetiology has been established to explain the decline. Characteristics of the canopy dieback and decline distribution are reminiscent of other forest declines known to involve Phytophthora soil pathogens and indicate that a Phytophthora species may be involved in the decline. In 2007 isolates of Phytophthora multivora, recently described by (1), were recovered from rhizosphere soil of declining or dead trees of Eucalyptus gomphocephala and E. marginata. For E. gomphocephala and E. marginata, the pathogenicity of P. multivora was tested: ex situ on seedlings using a soil infestation method; and in situ on stems using an under bark infestation method.

    Publication Type: Conference Paper
    Murdoch Affiliation: School of Biological Sciences and Biotechnology
    Centre for Phytophthora Science and Management
    Publisher: Australasian Plant Pathology Society
    Copyright: (c) Australasian Plant Pathology Society
    URI: http://researchrepository.murdoch.edu.au/id/eprint/2033
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