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OBSERVATIONS ON THE WHITE APPLE LEAFHOPPER, TYPHLOCYBA POMARIA (HEMIPTERA: CICADELLIDAE), AND ON THE MIRID PREDATOR BLEPHARIDOPTERUS ANGULATUS, AND MEASUREMENTS OF THEIR COLD-HARDINESS1

Published online by Cambridge University Press:  31 May 2012

A. W. MacPhee
A. W. MacPhee
Affiliation:
Research Station, Agriculture Canada, Kentville, Nova Scotia, B4N 1J5
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Abstract

Typhlocyba pomaria McA., with two generations per year, damages the leaves and defaces the fruit of apple. It was reduced in numbers in an experimental orchard by the predatory mirid Blepharidopterus angulatus (Fall.) which attacked the second generation. The cold-hardiness of T. pomaria and B. angulatus overwintering eggs, which had mean freezing points of −35 °C and −34 °C respectively, was sufficient to protect these species from winter low temperatures in Nova Scotia.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 4 , April 1979 , pp. 487 - 490
Copyright
Copyright © Entomological Society of Canada 1979

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References

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