Abstract
Before the advent of synthetic organic insecticides, it was much more difficult to control the codling moth, Carpocapsa pomonella (L.), in arid, hot areas with a long growing season, as in the Pacific northwest, than in cooler areas such as Ontario, where there is more rainfall and usually a shorter growing season. As a rule, in all apple growing areas, the codling moth is most numerous during summers in which the temperatures are above normal, particularly if the prevailing temperatures are high at dusk, when the moth is ovipositing. Consequently, unsatisfactory control in hot, dry areas, such as the South Okanagan of British Columbia, was attributed largely to the direct and favorable influence of climate on codling moth development (Webster, 1936).
Publisher
Cambridge University Press (CUP)
Subject
Insect Science,Molecular Biology,Physiology,Ecology, Evolution, Behavior and Systematics,Structural Biology
Reference4 articles.
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3. Colorado and Virginia strains of codling moth in relation to their ability to enter sprayed and unsprayed apples;Hough;J. Agr. Res.,1934
4. Some Laboratory Reactions of Young Codling Moth Larvae