Australasian Plant Pathology (1995) 24, 77-81

B.L. Shearer (1995)
Impact and symptoms of Armillaria luteobubaliula in rehabilitation plantings of Eucalyptus saligna in forests of Eucalyptus marginata in south-western Australia
Australasian Plant Pathology 24 (2), 77-81
Abstract: Armillaria luteobubalina was found in two of the nine surveyed plantings of Eucalyptus saligna near Dwellingup, established in the early 1970s to rehabilitate cleared areas in forests of E. marginata that had been degraded by infection by Phytophthora cinnamami. A. luteobubalina was present in 5 dead trees in one planting, and in 17 dead trees and 23 living trees with basal lesions at one end of a second planting. Within the diseased area of the second planting dead and infected trees tended to occur near old stumps. Trees with basal stem lesions grew more slowly than trees without, but the differences were not statistically significant. In five trees of E. saligna excavated, a basal lesion occurred where the stem of one tree had grown against an old stump of E. marginata colonised by A. luteobubalina, and in a second tree, infection originated from contact between lateral roots and an old infected root of E. marginata. Susceptibility of E. saligna to infection decreased with age as no tree have died during the period 1988-1993 and confined basal lesions had callused over. Adequate removal of inoculum in stumps and roots would be important in minimising damage by A. luteobubalina in plantings established on sites in south-western Australia that were formerly indigenous forest.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Bryan L. Shearer

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
damage/losses/economics

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Armillaria luteobubalina	Eucalypt (Eucalyptus)	Australia (Western)