Elsewhere on DAFF
Field guide to exotic pests and diseases: European spruce bark beetle
Ips typographus Linnaeus
Identification: mature larvae about 5mm long, white, legless, with light brown head. Adults 4-5.5mm long; cylindrical and dark brown to black, with long yellowish hairs on head and sides of body; head is visible from dorsal surface. Rear end of body concave, framed on sides by a raised margin bearing four distinct spikes.
Hosts: bark of damaged and healthy softwood trees and timber.
Distribution: Europe, China, Japan, Korea, Far Eastern Russia.
Detection: galleries extend about 12.5cm on the long axis of the trunk, visible when bark is removed, cause red-brown dust in bark crevices, emerge en masse. Emergence holes visible as circular holes 2-3mm in diameter or small tubes of resin protruding from the bark. Species most likely to enter Australia on imported timber packaging or dunnage contaminated with bark.
Potential impact: one of the most destructive pests of spruce in Europe, normally breeds in freshly fallen or weak standing trees but high populations will attack and kill healthy trees.
23 Apr 2007