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A GRAPE LEAFHOPPER, ERYTHRONEURA ZICZAC (HOMOPTERA: CICADELLIDAE), AND ITS MYMARID (HYMENOPTERA) EGG-PARASITE IN THE OKANAGAN VALLEY, BRITISH COLUMBIA

Published online by Cambridge University Press:  31 May 2012

L. M. McKenzie
Affiliation:
Pestology Centre, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia
Bryan P. Beirne
Affiliation:
Pestology Centre, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia

Abstract

The leafhopper Erythroneura ziczac Walsh is the most important insect on grape in the Okanagan Valley, B.C. Hairy-leaved varieties of grape are relatively resistant to attack. The leafhopper has two overlapping generations a year and overwinters in the adult stage. Its chief natural enemy is a mymarid egg-parasite, Anagrus epos Girault, which overwinters in the eggs of other species of leaf-hoppers on wild rose and apple so that intensity of parasitism of E. ziczac can be influenced by proximity of those plants to vineyards.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1972

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