Post-epidemic Situation of a Previously Phytophthora alni-infected Common Alder Stand

Kovács, Judit and Lakatos, Ferenc and Szabó, Ilona (2015) Post-epidemic Situation of a Previously Phytophthora alni-infected Common Alder Stand. ACTA SILVATICA ET LIGNARIA HUNGARICA, 11 (1). pp. 27-38. ISSN 1786-691X

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Abstract

This paper reports on the current situation of the Phytophthora species occurring in a declining common alder ( Alnus glutinosa ) stand in North - West Hungary . The stand w as affected by a severe epidemic caused by Phytophthora alni in the late 1990s. The a uthors evaluated the health condition of the forest stand and collected soil samples from the rhizosphere of twenty selected trees two times per year in 2011 and in 2012 in order to isolate Phytophthora species . A diverse Phytophtho ra community was found in the soil consisting of eight species with different aggressiveness and with different ecological demands . Pathogenicity tests confirmed the role of the collected strains in the decline of the alder stand.

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