2002•DiRROS repository (University of Maribor)Open access
Distribution of chestnut blight in Hungary and characterization of the Hungarian chestnut blight (Cryphonectria parasitica (murill) barr) strains
I. Aponyi, Gizella Izsányi, J. Sotonyi, Krisztina Varga, Zsolt Vendrei
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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