Forest Pathology (2010) 40, 73-86

A. Vannini, G. Natili, N. Anselmi, A. Montaghi and A.M. Vettraino (2010)
Distribution and gradient analysis of Ink disease in chestnut forests
Forest Pathology 40 (2), 73-86
Abstract: Distribution and gradient analysis of Ink disease caused by Phytophthora cambivora were studied over a 2 years period in a chestnut forest in Italy. Ink disease incidence, severity and tree mortality increased during the period over the studied chestnut forest. Disease descriptors and landform datasets were analysed by Geographic Information System software and displayed as a multilayer thematic map. Indices of dispersion and empirical dispersion models were used to study spatial distribution of disease in the investigated area. Semivariograms were used to interpolate spatial data and to map Ink disease. A logical spatial dependence of the studied variables was found. Ink disease occurred preferentially along natural drainages routes where multicyclic inoculum build up was likely to occur. A negative relationship was found between Ink disease incidence, severity and tree mortality with respect to distance from the drainage.
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Link to article at publishers website
Database assignments for author(s): Andrea Vannini, Anna Maria Vettraino, Naldo Anselmi

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytophthora cambivora	Chestnut (Castanea)	Italy