Forest Pathology (2013) 43, 252-256

S. Akilli, Ç. Ulubas Serçe, Y.Z. Katircioglu and S. Maden (2013)
Phytophthora dieback on narrow leaved ash in the Black Sea region of Turkey
Forest Pathology 43 (3), 252-256
Abstract: Severe dieback symptoms were observed in a 490-ha moist ash (Fraxinus angustifolia) lowland forest stand, comprising trees over 100 years old and in 100 ha of newly planted F. angustifolia near Sinop, in Turkey. Five of the 10 soil samples collected around stem bases of the diseased trees were baited using ash leaves and yielded a Phytophthora sp. This heterothallic species produced non-caducous, non-papillate sporangia in non-sterile soil extract, and fluffy, even growth on corn meal and potato dextrose agars, and suppressed, even growth on grated carrot agar. Isolates were identified as Phytophthora taxon salixsoil based on internal transcribed spacer DNA sequences. This species has been recently redesignated as P. lacustris. Three isolates were found to be pathogenic when inoculated on the stem bases of three-year-old F. angustifolia saplings.
(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): Salih Maden

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytophthora lacustris	Ash (Fraxinus)	Turkey