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

  • Charles D. Dondale (a1), Benoit Parent (a1) and Donat Pitre (a1)

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.

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.

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References

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

  • Charles D. Dondale (a1), Benoit Parent (a1) and Donat Pitre (a1)

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