摘要：In 2003 and 2004, severe defoliation brought a lot of
focus on Winter Moth (Operophtera brumata), Northern
Winter Moth (Operophtera fagata), Mottled Umber
Moth (Erannis defoliaria), Gypsy Moth (Lymantria dispar)
and many other species in eastern Austria, but the
general knowledge surrounding other associated feeding
larvae proved to be, on occasions, inadequate. An
attempt in 2005 using a spanned 3 x 5 m tarpaulin
between posts as a caterpillar trap, under four tree
species - Ash (Fraxinus excelsior), Hornbeam (Carpinus
betulus), Norway Maple (Acer platanoides) and Turkish
Oak (Quercus cerris) -, was carried out to bring us in
direct contact with tree specific species, with two main
objectives: First, increase our practical identification
knowledge, and second, get an overview of species
found within the different trees and any overlap
between species. This proved a successful exercise,
and brought some very unexpected results.
