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MULTIPLE PARASITISM OF THE PEA APHID: STAGE OF DEVELOPMENT OF PARASITE DETERMINES SURVIVAL OF APHIDIUS SMITHI AND PRAON PEQUODORUM (HYMENOPTERA: APHIDIIDAE)

Published online by Cambridge University Press:  31 May 2012

F. J. Chow  and
M. Mackauer
F. J. Chow
Affiliation:
Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6
M. Mackauer
Affiliation:
Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6
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Extract

Chow and Mackauer (1984) recently reported on inter- and intraspecific larval competition between Aphidius smithi Sharma & Subba Rao and Praon pequodorum Viereck (Hymenoptera: Aphidiidae), when both were parasitizing the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera: Aphididae). In interspecific competition, a 1st-instar Praon larva usually eliminated, by physical combat, an Aphidius larva that was up to 48 h older. However, circumstantial evidence suggested that once an Aphidius larva had reached an advanced stage of the final (4th) instar, it was able to complete development and pupate, even in the presence of a younger Praon competitor.

Type
Articles
Information
The Canadian Entomologist , Volume 117 , Issue 1 , January 1985 , pp. 133 - 134
Copyright
Copyright © Entomological Society of Canada 1985

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References

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