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PERFORMANCE OF THE ALFALFA BLOTCH LEAFMINER, AGROMYZA FRONTELLA (DIPTERA: AGROMYZIDAE), ON FOUR ALFALFA VARIETIES1

Published online by Cambridge University Press:  31 May 2012

Jacques Drolet  and
Jeremy N. McNeil
Jacques Drolet
Affiliation:
Département de biologie, Université Laval, Québec, Québec G1K 7P4
Jeremy N. McNeil
Affiliation:
Département de biologie, Université Laval, Québec, Québec G1K 7P4
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Abstract

Under laboratory conditions adult feeding, ovipositional preference, daily fecundity and longevity, as well as larval and pupal development time and survival of the alfalfa blotch leafminer, were compared on Anchor, Vernal, Iroquois, and Saranac varieties of alfalfa. Although some significant differences were noted, no constant trends were evident when considering all parameters, and rmax values for A. frontella (Rondani) on the four varieties tested were very similar.

Data from field plots confirmed that intervarietal differences of the varieties tested were not of sufficient magnitude to markedly affect the population dynamics of this pest species.

Résumé

Sous des conditions de laboratoire, la nutrition des adultes, la préférence de l'oviposition, la fécondité et la longévité, ainsi que la durée du développement et la survie des larves et des pupes de la mineuse virgule de la luzerne ont été comparées sur les variétés de luzerne Anchor, Vernal, Iroquois et Saranac. Certaines différences significatives ont été notées mais aucune tendance constante n'a été mise en évidence lorsque tous les paramètres ont été considérés. Des valeurs similaires de rmax ont été obtenues sur les quatre variétés testées.

Les données de terrain ont aussi montré que les différences entre les variétés testées n'ont pas été d'une importance suffisante pour affecter significativement la dynamique de population de la mineuse virgule de la luzerne.

Type
Articles
Information
The Canadian Entomologist , Volume 116 , Issue 6 , June 1984 , pp. 795 - 800
Copyright
Copyright © Entomological Society of Canada 1984

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