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AN UNUSUALLY COPIOUS PRODUCTION OF WEBBING BY A WILLOW-INHABITING SPIDER MITE, SCHIZOTETRANYCHUS SCHIZOPUS (ZACHER)

Published online by Cambridge University Press:  31 May 2012

Robert Duncan  and
Evert E. Lindquist
Robert Duncan
Affiliation:
Pacific Forestry Centre, Forestry Canada, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5
Evert E. Lindquist
Affiliation:
Biosystematics Research Centre, Agriculture Canada, Research Branch, C.E.F., Ottawa, Ontario, Canada K1A 0C6
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Abstract

Massive quantities of webbing and overwintering eggs produced by Schizotetranychus schizopus (Zacher), covering the trunks of two willow trees growing near Radium Hot Springs, British Columbia, are reported. This was the most extensive concentration of overwintering eggs and webbing, produced by spider mites under natural conditions, known to the authors.

Résumé

On signale la présence massive de toiles et d’oeufs hivernants produits par Schizotetranychus schizopus (Zacher) sur le tronc de deux saules croissant près de Radium Hot Springs en Colombie-Britannique. D’après les auteurs, il s’agit de la plus forte concentration de toiles et d’oeufs hivernants, produits par des tétranyques dans des conditions naturelles, jamais signalée.

Type
Articles
Information
The Canadian Entomologist , Volume 121 , Issue 12 , December 1989 , pp. 1037 - 1039
Copyright
Copyright © Entomological Society of Canada 1989

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References

Saito, Y. 1983. The concept of “life types” in Tetranychinae. An attempt to classify the spinning behaviour of Tetranychinae. Acarologia 24: 377–391.Google Scholar