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SEASONAL ACTIVITY OF THE BIRCH SKELETONIZER, BUCCULATRIX CANADENSISELLA CHAMBERS (LEPIDOPTERA: LYONETIIDAE), IN ALBERTA

Published online by Cambridge University Press:  31 May 2012

Scott C. Digweed
Scott C. Digweed
Affiliation:
Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2E9
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Abstract

The birch skeletonizer Bucculatrix canadensisella Chambers was univoltine in central Alberta in 1992 and 1993. Adults occurred from early June until the end of July, and larvae were present from early July on, co-occurring with larvae of the ambermarked birch leafminer, Profenusa thomsoni (Konow). Larval B. canadensisella densities were higher in 1992 than in 1993, and were higher on rural trees at George Lake than on urban ones in Edmonton.

Résumé

La Squeletteuse du bouleau, Bucculatrix candensisella Chambers, a été univoltine dans le centre de l’Alberta en 1992 et 1993. Les adultes ont été présents du début à la fin de juillet et les larves sont apparues dès le début de juillet et étaient présentes en même temps que les larves de la Tanthrède mineuse de Thomson, Profenusa thomsoni (Konow). La densité des larves de B. candensisella a été plus forte en 1992 qu’en 1993 et plus forte sur les arbres de la zone rurale du lac George que sur ceux de la zone urbaine d’Edmonton.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 130 , Issue 5 , October 1998 , pp. 579 - 582
Copyright
Copyright © Entomological Society of Canada 1998

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