Distribution of chestnut blight in Hungary and characterization of the Hungarian chestnut blight (Cryphonectria parasitica (murill) barr) strains

Ilona Aponyi and Gizella Izsányi and János Sótonyi and Krisztina Varga and Zsolt Vendrei (2002) Distribution of chestnut blight in Hungary and characterization of the Hungarian chestnut blight (Cryphonectria parasitica (murill) barr) strains. Zbornik gozdarstva in lesarstva (68). pp. 61-76. ISSN 0351-3114

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Abstract

During suweys made in the main sweet chestnut growing regions in Hungary we observed that one of the most serious "adversaries" of sweet chestnut trees is chestnut blight caused by Cryphonectria parasitica. Our main goals were to survey the plant health status of the Hungarian sweet chestnut stands, with special attention lo chestnut blight, and to implement a biological control method against chestnut blight based on hypovirulent strains of C. parasitica. The virulence of the strains was characterised by different laboratory tests: morphological examination, virulence test, phenol oxidase test, dsRNA exhaction, VCG test and artificial inoculation were performed on experimental plots

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