The first record of Cryphonectria parasitica in the Czech Republic

摘要

The causal agent of chestnut blight Cryphonectria parasitica (Murrill) M. E. Barr is a quarantine pest that has been recorded for the first time on the territory of the Czech Republic. Cryphonectria parasitica was observed in a sweet chestnut in the town of Uhersky Brod. Infected tree was imported as a two-year-old seedling from Bratislava (Slovakia), 25 years ago. The isolate of Cryphonectria parasitica has been compatible with European vc type 13 (EU 13). Castanea sativa Mill occurs in more than 293 localities in the Czech Republic. Its state of health was checked in 232 localities.