摘要：Forest Protection Situation 2008 in Austria
The year 2008 was characterized bymore than 10millionm3
of damaged wood, thrown or broken by hurricanes and
snow. Half of this volume was reported in Styria only. The
amount of wood damaged by bark beetles decreased to
barely twomillionm3; but in Lower Austria a heavy increase
of bark beetle damage was observed. In 2008, caterpillars
were of no significance. Invasive species, such as theWestern
Conifer Seed Bug Leptoglossus occidentalis, the Multicoloured
Asian Lady beetle Harmonia axyridis and the gall
midgeObolodiplosis robiniae increased the geographic range.
As regards fungi, needle-cast, rust and dieback-fungi
could frequently be observed in forests, forestations as well
as in Christmas tree plantations. Both dieback of ash trees
(Fraxinus excelsior) and the amount of dead ashes increased
2008. Researches confirmed that the micro fungi
Chalara fraxinea is the crucial pathogen of ash dieback. In
a diploma thesis Massaria platani on plane trees was investigated
in Vienna.
In 2008, Mycosphaerella dearnessii, Lecanosticta disease of
Pine, was detected for the first time in a forest in Lower
Austria. Despite of an intensive monitoring and eradication
programme, the Asian Longhorn Beetle Anoplophora
glabripennis could not be eradicated in Braunau (Upper
Austria); also in 2008, ten infested trees were detected and
destroyed. Occasionally along fluvial forests problems
with beaver were increasingly reported
关键词：Forest health situation, Austria, abiotic damage,
pests, diseases
