Suitability of pupae of the stem borer Chilo partellus (Swinhoe) (Lep., Pyralidae) of various ages for parasitism by Pediobius furvus (Gahan) (Hym., Eulophidae)

The influence of the age of host (Chilo partellus) pupae on parasitoid Pediobius furvus fecundity, developmental period, progeny production, and sex ratio is reported. The extent of parasitism was determined from the proportions of parasitoid emergence to host adults recorded. Host age was found to...

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Veröffentlicht in:Journal of applied entomology (1986) 1997-05, Vol.121 (3), p.147-150
Hauptverfasser: DUALE, A. H, NWILENE, F. E, OKWAKPAM, B. A
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creator DUALE, A. H
NWILENE, F. E
OKWAKPAM, B. A
description The influence of the age of host (Chilo partellus) pupae on parasitoid Pediobius furvus fecundity, developmental period, progeny production, and sex ratio is reported. The extent of parasitism was determined from the proportions of parasitoid emergence to host adults recorded. Host age was found to be an important factor in development of immature of P. furvus with greater emergence from younger hosts, and C. partellus pupae over 5-day-old being rejected by the gravid female parasitoid. The result showed that both acceptability and suitability of C. partellus pupae drop off after 2 days, and to zero after 4 days. However, the host ages that are accepted by the parasitoid appear to be fairly wide.
doi_str_mv 10.1111/j.1439-0418.1997.tb01384.x
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source Wiley Online Library Journals Frontfile Complete
subjects Biological and medical sciences
Biological control
Chilo partellus
Control
Eulophidae
Fundamental and applied biological sciences. Psychology
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
Pyralidae
title Suitability of pupae of the stem borer Chilo partellus (Swinhoe) (Lep., Pyralidae) of various ages for parasitism by Pediobius furvus (Gahan) (Hym., Eulophidae)
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