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LABORATORY STUDIES OF THE FOOD PREFERENCES OF SOME ORCHARD CARABIDS (COLEOPTERA: CARABIDAE)

Published online by Cambridge University Press:  31 May 2012

E. A. C. Hagley ,
N. J. Holliday  and
D. R. Barber
E. A. C. Hagley
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
N. J. Holliday
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
D. R. Barber
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
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Abstract

Laboratory studies of the food preferences of several adult carabids showed that Amara aenea DeG., Anisodactylus sanctaecrucis F., Harpalus affinis Schr., and Stenolophus comma F. were polyphagous and readily fed on the seeds of several weeds as well as on young codling moth larvae and apple maggot pupae. H. affinis also attacked 4th and 5th instar codling moth larvae and pupae more readily than the other species. Pterostichus melanarius III. showed a strong preference for the larger prey such as 5th instar codling moth larvae, earthworms, and scarabaeid larvae. The potential of these species as predators of the codling moth and the apple maggot is discussed.

Résumé

Des études de laboratoire sur les préférences alimentaires de plusieurs carabidés adultes ont révélé que Amara aenea DeG., Anisodactylus sanctaecrucis F., Harpalus affinis Schr. et Stenolophus comma F. étaient polyphages et n'hésitaient pas à se nourrir des graines de plusieurs espèces de mauvaises herbes, ainsi que de jeunes larves du carpocapse et de pupes de la mouche de la pomme. H. affinis s'attaque également davantage aux pupes et aux larves des 4e et 5e stades du carpocapse qu'aux autres espèces. Pterostichus melanarius III. montre une préférence marquée pour les proies plus volumineuses comme les larves du 5e stade du carpocapse, les lombrics et les larves de scarabéidés. L'auteur étudie l'efficacité prédatrice de ces espèces sur le carpocapse et la mouche de la pomme.

Type
Articles
Information
The Canadian Entomologist , Volume 114 , Issue 5 , May 1982 , pp. 431 - 437
Copyright
Copyright © Entomological Society of Canada 1982

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