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EFFECT OF TEMPERATURE ON OVIPOSITION AND BROOD DEVELOPMENT OF PISSODES STROBI (COLEOPTERA: CURCULIONIDAE)

Published online by Cambridge University Press:  31 May 2012

L. H. McMullen
L. H. McMullen
Affiliation:
Pacific Research Forest Centre, Canadian Forestry Service, Victoria, British Columbia
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Abstract

The effects of temperature on rates of oviposition and development of immature stages of Pissodes strobi from Sitka and white spruce were investigated in the laboratory. Maximum rate of oviposition occurred at 20° to 26 °C. Brood development from egg to emergence took 888 and 785 degree-days above a threshold of 7.2 °C for the weevil from Sitka and white spruce, respectively.

Résumé

L’auteur étudia en laboratoire les effets de la température sur les taux de ponte et sur le développement de Pissodes strobi sur l’Epinette de Sitka (Picea sitchensis) et l’Epinette blanche (Picea glauca). La ponte maximale se produisit à 20 à 26 °C. Le développement de la progéniture depuis l’oeuf jusqu’à l’émergence dura 888 et 785 degrés-jours au-dessus d’un seuil de 7.2 °C chez l’Epinette de Sitka et l’Epinette blanche, respectivement.

Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 11 , November 1976 , pp. 1167 - 1172
Copyright
Copyright © Entomological Society of Canada 1976

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