Schädlinge an Lärchennadeln

Pests on needles of larch trees

Wien

2004

17 Abb.

Artikel aus einer ZeitschriftUnselbständiges Werk

12531

200120054

In the last few years we found many pests on needles of European Larch (Larix decidua) - either in the lab in the course of expert opinions of samples sent to the BFW or during field trips of our department. some of these have occurred on a high level in some federal districts of Austria for years and are the reason for remarkable damage symptoms in the forests. Others are found rather rarely being of only local interest, both economically and scientifically. The most important pests are a larch needle adelgid (Adelges geniculatus), the larch casebearer (Coleophora laricella) and the larch bud moth (Zeiphera diniana). Not so important but of some scientific interest are the larch sawfly Prisitphora laricis and two gall midges, one living in buds (Dasineura laricis) and one - recently unidentified - in needles. At least other pests of different importance were also detected, such as spider mites, gal mites, other lepidoptera (f.e. Lasiocampa quercus, Eupithecia sp.) and needle feeding weevils.