Schildlaus-Breitrüssler und Fichtenquirlschildlaus : Der Kuckuck im Läusenest

Wien

2005

S. 26-27

5 Abb.

Artikel aus einer ZeitschriftUnselbständiges Werk

200127849

In spring 2004, samples of Norway spruce which were heavily infested by the Spruce bud scale (Physokermes hemichryphus) were brought to the Department of Forest Protection. In many of the adult scales either the larvae or the adult beetle of a predator of these scales was found. It was identified as Common scale snout beetle (Brachytarsus nebulosus), also known as efficient predator of Physokermes spp. Because of appearance of the predator no measures were recommended. In 2005, no further outbreak was observed.