European Earwigs (Dermaptera: Forficulidae) Fail to Control Apple Aphids on Bearing Apple Trees and Woolly Apple Aphids (Homoptera: Aphididae) in Apple Rootstock Stool Beds
- 1 August 1985
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 78 (4) , 972-974
- https://doi.org/10.1093/jee/78.4.972
Abstract
Insectary-reared and wild European earwigs, Forficula auricularia L., provided with artificial daytime retreats on bearing apple trees infested with apple aphids, Aphis pomi DeGeer, failed to slow aphid population growth. The difference between this result and earlier success on nonbearing apple trees is not explained. Caged earwigs damaged a few apple fruits by feeding at the calyx end, but no damage to fruit and only minimal damage to leaves was observed when earwigs were allowed free movement. Earwigs released and caged on apple rootstock stool beds after suppression of apple aphids by insecticide treatment prevented resurgence of apple aphids but had no apparent effect on infestations of woolly apple aphids, Eriosoma lanigerum (Hausmann).This publication has 0 references indexed in Scilit: