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    Volatiles from Maruca vitrata (Lepidoptera, Crambidae) host plants influence olfactory responses of the parasitoid Therophilus javanus (Hymenoptera, Braconidae, Agathidinae)

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    U18ArtSounaVolatilesInthomDev.pdf (970.5Kb)
    Date
    2018
    Author
    Souna, D.A.
    Bokonon-Ganta, A.H.
    Dannou, E.A.
    Imorou, N.
    Agui, B.
    Cusumano, A.
    Srinivasan, R.
    Pittendrigh, B.R.
    Volkoff, A.N.
    Tamo, M.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Plants damaged by herbivores are known to release odors attracting parasitoids. However, there is currently no information how leguminous plants damaged by the pod borer Maruca vitrata attract the exotic larval parasitoid Therophilus javanus, which was imported into Benin from the putative area of origin of the pod borer in tropical Asia for assessing its potential as a biological control agent. In this study, we used Y-tube olfactometer bioassays to investigate T. javanus response towards odors emitted by four M. vitrata-damaged host plants: cowpea Vigna unguiculata, the most important cultivated host, and the naturally occurring legumes Lonchocarpus sericeus, Sesbania rostrata and Tephrosia platycarpa. Olfactory attraction of T. javanus was influenced by the species of plant damaged by the pod borer. Moreover, odors released from M. vitrata-infested host plant organs (flowers and pods) were discriminated over non-infested organs in cowpea and T. platycarpa, respectively. These results are discussed in the context of the possible impact of M. vitrata host plants on T. javanus foraging activity and subsequent establishment in natural environments following experimental releases.
    https://dx.doi.org/10.1016/j.biocontrol.2018.11.002
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4950
    Non-IITA Authors ORCID
    Manuele Tamòhttps://orcid.org/0000-0002-5863-7421
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1016/j.biocontrol.2018.11.002
    Research Themes
    PLANT PRODUCTION & HEALTH
    IITA Subjects
    Cowpea; Grain Legumes; Plant Health; Plant Production
    Agrovoc Terms
    Biological Control; Natural Enemies; Olfaction; Cowpeas; Host Plants; Benin; West Africa; Pests
    Regions
    Africa; West Africa
    Countries
    Benin
    Journals
    Biological Control
    Collections
    • Journal and Journal Articles4835
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