20th March 2008, 11:44 AM
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| Former Member
Join Date: Dec 2007 Location: Earth Australia
Posts: 234
|  Eucalyptus rust - Exotic Disease threat
(AUSSIES) .... WOULD YOU RECOGNISE THIS EXOTIC DISEASE? Quote:
Eucalyptus rust (Puccinia psidii) – a serious threat to a national icon
by Andrew Geering
Eucalypts (Eucalyptus and Corymbia spp.) are the dominant component of the Australian vegetation .... Not surprisingly, eucalypts are critical to the survival of much of the Australian fauna....
A serious threat to eucalypts lurks offshore, outside the natural range of the trees, in South America. This threat is Puccinia psidii, the cause of rust disease in eucalypts. ....
P. psidii must be regarded as one of the most serious quarantine threats to Australia. P. psidii is unusual amongst rust fungi in having a relatively broad host range....and all genera of the Myrtaceae can be regarded as potentially susceptible. If it were to be introduced in Australia, it is likely that P. psidii would spread rapidly through wind dispersal of spores, and there would be no practical control method in native forests.... P. psidii could be very damaging to the native flora, and indirectly, fauna, as well as the hardwood timber industry.....
| Emerging diseases - Ready and waiting? Eucalyptus/guava rust - DAFF http://www.cqkoala.org.au/images/euc...fact_sheet.pdf PaDIL |
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