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THE USE OF OVIPOSITION ACTIVITY TO MONITOR POPULATIONS OF CULEX PIPIENS AND CULEX RESTUANS (DIPTERA: CULICIDAE)

Published online by Cambridge University Press:  31 May 2012

D. J. Madder ,
R. S. MacDonald ,
G. A. Surgeoner  and
B. V. Helson
D. J. Madder
Affiliation:
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1
R. S. MacDonald
Affiliation:
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1
G. A. Surgeoner
Affiliation:
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1
B. V. Helson
Affiliation:
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1
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Abstract

Culex pipiens (L.) and Culex restuans Theo. populations were monitored at Guelph, Ontario, throughout the summer of 1978, by egg raft collections from artificial pools and adult collections using CO2-baited, CDC light traps. Three to four major generations of C. pipiens were evident with first oviposition on 17 May and last on 15 October. C. restuans was abundant during the spring and early summer while C. pipiens was most abundant in mid-July and August. Neither species showed greater attraction to pools containing a reported ovipositional attractant, decanoic acid. The use of oviposition pools was found to be an efficient, inexpensive, and sensitive technique for monitoring populations of Culex spp.

Résumé

Les populations de Culex pipiens et Culex restuans ont été échantillonnées à Guelph, Ontario, au cours de tout l’été 1978, en collectionnant les masses d’œufs à la surface d’étangs artificiels, et les adultes au piège lumineux CDC appâté au CO2. Trois à quatre générations de C. pipiens ont été mises en évidence, la première ponte ayant eu lieu le 17 mai et la dernière le 15 octobre. C. restuans était abondant au printemps et au début de l’été alors que C. pipiens était le plus abondant à la mi-juillet et en août. Aucune des espèces n’a montré d’attraction accrue pour les étangs contenant de l’acide décanoïque, rapporté comme étant un attractant pour la ponte. L’utilisation d’étangs de ponte s’est révélée une technique efficace, peu dispendieuse et sensible pour la surveillance des populations de Culex spp.

Type
Articles
Information
The Canadian Entomologist , Volume 112 , Issue 10 , 01 October 1980 , pp. 1013 - 1017
Copyright
Copyright © Entomological Society of Canada 1980

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