Journal of Phytopathology (2013) 161, 287-289

Ilker Kurbetli (2013)
Phytophthora cinnamomi associated with root and crown rot of walnut in Turkey
Journal of Phytopathology 161 (4), 287-289
Abstract: Walnut decline caused by Phytophthora sp. occurred in an orchard in Sakarya province in Turkey. Affected young trees showed poor growth, leaf discolouration, root and crown rot and eventual death. A Phytophthora sp. isolated from necrotic taproots and crown tissues. The causal agent of the disease was identified as Phytophthora cinnamomi by morphological characteristics and comparing sequences of internal transcribed spacer (ITS) region. Upon conducting pathogenicity test, averaging 7.8-cm-long canker developed on basal stem within 2 weeks, while no cankers developed in the control plants.
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Link to article at publishers website
Database assignments for author(s): Ilker Kurbetli

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 cinnamomi	Walnut/butternut (Juglans)	Turkey