Cryphonectria parasitica found in the EU (DE)
Cryphonectria parasitica (EPPO A2 quarantine pest) has been found for the first time in Germany. The pathogen of Castanea spp. was found in Baden-Wrttemberg in two locations. The first disease focus found was an approximately 1 ha forest plot which showed severe infections. According to the owner of the plot first symptoms appeared 6 to 8 years ago. The second focus was found in a neighbouring community where a single tree was found to be infected. To eradicate or control the spread of the disease the infected trees were felled and used as fuel for the local population. Necrotic parts of the trees were burned immediately at the location. Further research is being conducted to determine the virulence of the isolates as well as their association to vegetative compatibility groups of the fungus.
Seemann, D.; Unger, J.-G. ;(1993) ;Rindenkrebs der Eákastanie in der Bundesrepublik Deutschland.
Nachrichtenblatt des Deutschen Pflanzenschutzdienstes, 45, 120-122.