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Some factors that affect the annual cycle of the winter moth, operophtera brumata (l.) (lepidoptera: geometridae) in western europe

Author:
WYLIE, H.G.
Source:
Entomologia experimentalis et applicata 1960 v.3 no.2 pp. 93-102
ISSN:
0013-8703
Subject:
Operophtera brumata, altitude, eggs, pupae, pupal development, temperature, Europe, Western European region
Abstract:
Egg development rate in the winter moth (Operophtera brumata (L.)) is increased by higher temperatures between at least 6.0° C and 18° C. Pupal development rate is, in general, reduced by higher temperatures. Therefore, lower temperatures in northern localities and at high altitudes in Europe increase the duration of the egg stage and decrease that of the pupa. Inherent differences in the eggs and pupae from different localities increase the effect of temperature differences.
Agid:
141078