ISHS Acta Horticulturae 693: III International Chestnut Congress
IDENTIFICATION OF NATURAL INFECTION OF QUERCUS SPP. BY CHESTNUT BLIGHT FUNGUS (CRYPHONECTRIA PARASISTICA) |
| Authors: | L. Radócz, G. Tarcali |
| Keywords: | Cryphonectria parasitica, European chestnut, Quercus petraea |
| DOI: | 10.17660/ActaHortic.2005.693.82 |
| Abstract:
The chestnut blight fungus Cryphonectria parasitica (Murrill) Barr [syn.: Endothia parasitica (Murr) Anderson] caused almost total destruction of the American chestnut (Castanea dentata) and widely spread on European chestnut (Castanea sativa) in many European countries. Because this fungus threatens most of the Hungarian chestnut stands, great efforts have been made to delay its spread. Biological control with Hungarian hypovirulent strains of the pathogen seems to be an effective method for saving the affected chestnut trees. Until 1998 the fungus was detected on Castanea sativa only, then it was found on some trees of young Quercus petraea in mixed chestnut forests, which also showed the typical symptoms of blight (Zenkővárkony, Kőszeg and Baia Mare). Although blight symptoms are not as serious in Quercus spp. as in Castanea spp., it seems that C. parasitica threatens the young Quercus spp. in Hungary and in Romania, mainly in heavily infected chestnut forests. This is the first report of C. parasitica cankers on oak in Romania. | |
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