Borkenkäfer-Monitoring und Borkenkäfer-Kalamität 2004

Bark-beetle monitoring and bark-beetle gradation 2004 in Austria

Wien

2005

2 Abb.

Artikel aus einer ZeitschriftUnselbständiges Werk

12531

200126001

In March 2004, a bark-beetle monitoring system with pheromone traps has been established first in the Federal Province Lower Austria, and later also in Upper Austria, Salzburg and Vorarlberg. In combination with mean temperature data from climate stations in the proximity of the traps, the flight activity of Ips typographus, Pityogenes chalcographus, Ips cembrae, Ips acuminatus and Ips sexdentatus was published on the Website of BFW. The main result was permanently high flight activity due to the irregular start of beetle dispersal after hibernating. In 2004, the damages caused by bark-beetle in Austria increased from 2,1 million m3 to 2,44 million m3 - a record amount after 2003. About 80 percent of damaged wood was attacked by Ips typographus (nearly 2,0 million m3). Altogether, damages by Ips typographus and Ips cembrae have increased whereas damages by Pityogenes chalcographus have decreased.