, Volume 33, Issue 3, pp 333–338 | Cite as

The effect of fungus infection ofMetopolophium dirhodum [Hom.: Aphididae] on the oviposition behaviour of the aphid parasitoidAphidius rhopalosiphi [Hym.: Aphidiidae]

  • Patricia J. Brobyn
  • Suzanne J. Clark
  • N. Wilding


The oviposition behaviour of the hymenopterous parasitoidAphidius rhopalosiphi onMetopolophium dirhodum nymphs at successive stages of infection with the aphid-pathogenic fungusErynia neoaphidis was compared with that on uninfected nymphs. The frequency with which the parasitoid attempted to oviposit diminished in aphids inoculated with the fungus 3 days previously, that is within only 24 h of dying of the infection, but not in those infected only 1 or 2 days previously. The parasitoid did not attempt to oviposit in aphids killed by the fungus.


Cereal aphids parasitoid behaviour Aphidiidae Entomophthorales fungus-parasitoid interactions 


Le comportement de ponte de l'Hyménoptère parasitoïdeAphidius rhopalosiphi a été étudié respectivement chez des larves deMetopolophium dirhodum infectées 1 jour, 2 jours ou 3 jours auparavent par le champignon entomopathogèneErynia neoaphidis et chez des larves saines. La fréquence avec laquelle le parasitoïde tente de déposer un œuf diminue dans le cas des pucerons infectés 3 jours auparavant, soit moins de 24 h seulement avant la mort par mycose; cette fréquence ne diminue pas dans le cas des pucerons infectés 1 ou 2 jours auparavant. Le parasitoïde ne tente pas de pondre dans les pucerons tués par le champignon.

Mots Clés

Pucerons des céréales comportement parasitaire Aphidiidae Entomophthorales interactions germe parasitoïde 


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Copyright information

© Lavoisier Abonnements 1988

Authors and Affiliations

  • Patricia J. Brobyn
    • 1
  • Suzanne J. Clark
    • 1
  • N. Wilding
    • 1
  1. 1.Rothamsted Experimental StationAFRC Institute of Arable Crops ResearchHarpendenU.K.

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