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Phytophthora cambivora found on beech in Norway
Author(s) -
Telfer K. H.,
Brurberg M. B.,
Herrero M.L.,
Stensvand A.,
Talgø V.
Publication year - 2015
Publication title -
forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 1437-4781
DOI - 10.1111/efp.12215
Subject(s) - beech , biology , fagus sylvatica , phytophthora , canker , horticulture , botany
Summary In 2011, Phytophthora cambivora was isolated for the first time from a European beech ( Fagus sylvatica ) in the largest beech forest in Norway, in Larvik. This led to a survey of Phytophthora , both in Larvik and in a small beech stand in Ås. Both locations are in urban areas in south‐eastern Norway. Trees with a circumference above 20 cm at chest height were examined for bleeding cankers. Samples from the leading edge of canker wounds were collected from selected trees in both locations and isolations were carried out on a Phytophthora‐ selective medium. Quantification of diseased trees in three areas of the forest in Larvik showed a variation from 1.8 to 22.7% trees with bleeding cankers. In Ås, 9.2% of the trees had bleeding cankers. Isolation from diseased beech in both Larvik and Ås yielded P. cambivora . Inoculation of healthy trees, subsequent development of disease and re‐isolation of the pathogen confirmed the pathogenicity of P. cambivora . Description of morphological features of one of the obtained isolates is included.

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