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Experimental studies upon the parasitoid complex of the gypsy moth ( Lymantria dispar L.) (Lep., Lymantriidae) in lower host populations in eastern Austria *
Author(s) -
Eichhorn O.
Publication year - 1996
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.1996.tb01592.x
Subject(s) - biology , parasitoid , braconidae , tachinidae , ichneumonidae , lymantria dispar , gypsy moth , apanteles , parasitism , host (biology) , zoology , larva , botany , ecology
The parasitoid complex of low gypsy moth populations, using the host exposure technique, was studied in eastern Austria in the late 70s. The following 10 larval parasitoid species were recovered: Braconidae: Apanteles melanoscelus (Ratzeburg), Apanteles liparidis (Bouché), Meteorus pulchricornis (Wesmael); Ichneumonidae: Casinaria sp., Hyposoter tricoloripes (Viereck), Phobocampe disparis (Viereck); Tachinidae: Parasetigena silvestris (Robineau‐Desvoidy), Blepharipa pratensis (Meigen), Compsilura concinnata (Meigen), Exorista fasciata (Fallen). Parasitism obtained from the rearing of 1961 host larvae amounted to 58.1% and based on both the larval rearings and the collection of parasitoid cocoons to about 87%. Parasitism encountered by dissecting gypsy moth larvae showed generally high values (37–89%) 3–4 weeks after release. The dominating parasitoid species were the braconid A. melanoscelus and the tachinids B. pratensis, P. silvestris and later in the season C. concinnata . The braconid suffered an average mortality of almost 50% by 16 hyperparasitoid species. Notes on the dominating parasitoid species are given.