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    Isopentyl butanoate: aggregation pheromone of the brown spiny bug, Clavigralla Tomentosicollis (hemiptera: coreidae), and kairomone for the egg parasitoid gryon sp. (hymenoptera: scelionidae)

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    S19ArtKpongbeIsopentylInthomDev.pdf (1.036Mb)
    Date
    2019-06-17
    Author
    Kpongbe, H.
    Van den Berg, J.
    Khamis, F.
    Tamò, M.
    Torto, B.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract
    The brown spiny bug, Clavigralla tomentosicollis Stål (Hemiptera: Coreidae) is a key pest of leguminous crops in many countries in Africa, causing significant yield losses especially in cowpea, pigeon pea and common beans. Although C. tomentosicollis uses olfaction to aggregate, little is known about the identity of the aggregation pheromone. This study aimed to identify the aggregation pheromone of C. tomentosicollis and to test its potential role in the behavior of its egg parasitoid, Gryon sp. In Y-tube olfactometer bioassays, only male volatiles strongly attracted both sexes of C. tomentosicollis. Coupled gas chromatography/electroantennographic detection (GC/EAD) and GC/mass spectrometry were used to identify antennally-active compounds from male volatiles. Antennae of both sexes detected identical components including a male-specific component, identified as isopentyl butanoate, which was also detected by antenna of the egg parasitoid. In olfactometer bioassays, both sexes of C. tomentosicollis and the egg parasitoid responded to isopentyl butanoate. These results suggest that isopentyl butanoate serves as an aggregation pheromone for both sexes of C. tomentosicollis and a useful kairomone to attract the parasitoid in the management of C. tomentosicollis.
    https://dx.doi.org/10.1007/s10886-019-01081-5
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5879
    Non-IITA Authors ORCID
    Manuele Tamòhttps://orcid.org/0000-0002-5863-7421
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1007/s10886-019-01081-5
    Research Themes
    PLANT PRODUCTION & HEALTH
    IITA Subjects
    Plant Health; Plant Production
    Agrovoc Terms
    Aggregation Pheromones; Biological Control; Kairomones; Olfaction
    Regions
    Africa; East Africa
    Countries
    Kenya
    Journals
    Journal of Chemical Ecology
    Collections
    • Journal and Journal Articles4136
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