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Phytophthora ramorum:  a threat to Australia?
Journal article   Open access   Peer reviewed

Phytophthora ramorum: a threat to Australia?

E. O'Gara, D. Hüberli and G.E.St.J. Hardy
Australasian Plant Conservation, Vol.13(4), pp.22-24
2005
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Abstract

What makes Phytophihora cinnarnomi such a devastating plant pathogen in the Australian environment? • It is a microscopic organism that lives in soil and plant roots. • It can., and has, spread widely in many Australian landscapes through movement of infested soil from one location to another, naturally and by human activities ranging from bushwalking to mining. • It can reproduce asexually and prolifically when conditions are optimal (warm and moist). • It infects a very broad range of plants, and the susceptibility of much of Australia’s unique flora indicates that it is exotic in origin. • Once present in a landscape it cannot be eradicated, although management is possible with commitment from governments, industry and the community. It’s a fairly grim scenario...but it couldn’t get any worse. . .could it? Unfortunately, it could! Imagine a species of Phytophihora that has all the characteristics of P. cinnamonii, but also has the capacity to be carried by wind-driven rain. Phvtophthora rarnorum is just such a pathogen.

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