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Entomophaga

, Volume 21, Issue 1, pp 13–17 | Cite as

Interactions betweenPleolophus basizonus andLophyroplectus luteator [Hym.: Ichneumonidae], two parasites ofNeodiprion sertifer [Hym.: Diprionidae]

  • K. J. Griffiths
Article

Abstract

Females ofPleolophus basizonus (Gray.) show a very strong avoidance of cocoonedNeodiprion sertifer (Geoff.) prepupae in which there are eggs, larvae or prepupae ofLophyroplectus luteator (Thunb.). When multiparasitism does occurP. basizonus is the successful competitor but adults are much smaller than those from hosts that were not multiparasitized.

Keywords

Plant Pathology Successful Competitor Strong Avoidance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

Les femelles dePleolophus basizonus (Grav.) évitent fortement les prénymphes deNeodiprion sertifer (Geoff.) en cocon, contenant des œufs, des larves ou des nymphes deLophyroplectus luteator (Thunb.). Dans les cas de parasitisme multiple,P. basizonus est le compétiteur victorieux, mais les adultes sont beaucoup plus petits que ceux provenant d'hôtes qui ne sont pas multiparasités.

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References

  1. Griffiths, K.J. — 1969a. The importance of coincidence in the functional and numerical responses of two parasites of the European pine sawfly,Neodiprion sertifer (Geoff.). —Can. Entomol., 101, 673–713.Google Scholar
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  7. Griffiths, K.J., Rose, A.H. & Bird, F.T. — 1971.Neodiprion sertifer (Geoff.), European pine sawfly, [Hymenoptera: Diprionidae]. In: Biological control programmes against insects and weeds in Canada 1959–1968. —Commonw. Inst. Biol. Control, Tech. Comm., 4, 150–162.Google Scholar
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Copyright information

© Le François 1976

Authors and Affiliations

  • K. J. Griffiths
    • 1
  1. 1.Department of the Environment, Canadian Forestry ServiceGreat Lakes Forest Research CentreSault Ste MarieCanada

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