Australasian Plant Pathology (1999) 28, 162-169

G. Weste, T. Walchhuetter and T. Walshe (1999)
Regeneration of Xanthorrhoea australis following epidemic disease due to Phytophthora cinnamomi in the Brisbane Ranges, Victoria
Australasian Plant Pathology 28 (2), 162-169
Abstract: Regeneration of populations of Xanthorrhoea australis occurred on a site in the Brisbane Ranges from which most plants of this previously dominant understorey species were eliminated by Phytophthora cinnamomi during the past 36 years. Root excavation showed that the young plants regenerated from seed. Nine living plants of X. australis were recorded from the whole of the infested and regenerating site in 1990. In 1998, 77 plants were growing in three sample plots on the same site, in comparison with 87 plants in plots of the same size on a disease-free site. The proportion of these populations less than 8 years of age on the infested plots (0.29) was double that of the disease-free plots (0.15) and 2.5 times that of recently infested plots, evidence of rapid regeneration of this slow growing species. P. cinnamomi was detected in a small percentage of soil and root samples, possibly due to dry conditions, although it appears that P. cinnamomi is present only in small, scattered populations.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytophthora cinnamomi	Xanthorrhoea (genus)	Australia (South+SE)