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A 6-YEAR STUDY OF SPIDERS (ARANEAE) IN A QUEBEC APPLE ORCHARD1

Published online by Cambridge University Press:  31 May 2012

Charles D. Dondale ,
Benoit Parent  and
Donat Pitre
Charles D. Dondale
Affiliation:
Biosystematics Research Institute, Agriculture Canada, Ottawa K1A 0C6
Benoit Parent
Affiliation:
Biosystematics Research Institute, Agriculture Canada, Ottawa K1A 0C6
Donat Pitre
Affiliation:
Biosystematics Research Institute, Agriculture Canada, Ottawa K1A 0C6
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Abstract

Forty-one species of spiders were found in a Quebec apple orchard. The most abundant species were Theridion murarium, Araniella displicata, and Philodromus rufus. Spiders in general were rather low in population density throughout the study, and they declined by two-thirds in the final year, owing probably to several factors including the use of broad spectrum insecticides for the control of particular orchard pests.

Résumé

Dans un verger de pommiers au Québec, on a inventorié 41 espèces d’araignées parmi lesquelles Theridion murarium, Araniella displicata, et Philodromus rufus étaient les espèces les plus abondantes. De façon générale, les populations d’araignées étaient faibles et elles ont été réduites des deux tiers après l’application d’insecticides polyvalents contre certains ravageurs des pommiers.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 3 , March 1979 , pp. 377 - 380
Copyright
Copyright © Entomological Society of Canada 1979

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