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Specificity and instar preference ofDiplazon laetatorius (Hym.: Ichneumonidae) parasitizing aphidophagous syrphids (Dipt.: Syrphidae)

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Abstract

D. laetatorius is one of the most important natural enemies of aphidophagous syrphid flies, in terms of abundance, in crops and pastures in Argentina. In order to increase the database on this parasitoid, its prey selection behaviour was studied. Laboratory experiments were made to investigate its preference of host species and instars within species. This parasitoid showed a fastidious behaviour, choosing more often than predicted by chance, first instars ofAllograpta exotica (Wied.).

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References

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Authors and Affiliations

  1. Department of Entomology, University of Maryland College Park, 20742-5575, MD, USA

    C. F. Greco

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  1. C. F. Greco
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Greco, C.F. Specificity and instar preference ofDiplazon laetatorius (Hym.: Ichneumonidae) parasitizing aphidophagous syrphids (Dipt.: Syrphidae). BioControl 42, 315–318 (1997). https://doi.org/10.1007/BF02769823

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  • DOI: https://doi.org/10.1007/BF02769823

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