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    Effect of fruit and host fly species on the associative learning by Fopius arisanus

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    S19ArtMonsiaEffectInthomDev.pdf (378.2Kb)
    Date
    2019-02-26
    Author
    Monsia, A.
    Mègnigbèto, G.S.B.
    Gnanvossou, D.
    Karlsson, M.F.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Parasitoids, released in augmentative biological control programmes, which display a rapid host-location capacity, have a higher likelihood of successfully controlling target pest species. By learning to associate sensory cues to a suitable oviposition site, might parasitoids used as biological control agents, locate hosts more rapidly, and perhaps increase the efficacity of e.g. Tephritidae fruit fly management. We studied associative learning of Fopius arisanus (Hymenoptera: Braconidae) and tested its range of learning in natural and conditional hosts and host fruits, i.e. Bactrocera dorsalis, Zeugodacus cucurbitae, Ceratitis capitata and Ceratitis cosyra (Diptera: Tephritidae) and on fruits (papaya, tomato, banana). Naïve female F. arisanus were compared with experienced wasps, which had been offered infested and non-infested fruit, and been allowed to oviposit. Preferences for olfactory cues from infested fruits were thereafter assessed in a two-choice olfactometer. Naïve and trained parasitoids preference differed in general and non-responders to infested fruits were higher among naïve parasitoids. The trained wasps preferred the fruit infested in the training more than the control fruit, for all combination, except when C. cosyra infested the fruits, hence avoidance behavioural response was observed towards the odour of the infested fruit. Fopius arisanus was capable of behaviourally respond to the learned information, e.g. associative odour learning was achieved, yet limited depending on interaction level, fruit fly and fruit combination. To create F. arisanus preference of an associated odour, it might hence be needed to ensure oviposition in perceived suitable host and host fruit, for the parasitoid learning to become favourable in a biological control setup.
    https://dx.doi.org/10.1017/S0007485319000038
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5253
    Non-IITA Authors ORCID
    Miriam Karlssonhttps://orcid.org/0000-0001-9133-2948
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1017/S0007485319000038
    IITA Subjects
    Pests Of Plants
    Agrovoc Terms
    Braconidae; Tephritidae; Behaviour; Parasitoids; Fruit; Flies
    Regions
    Africa; East Africa; West Africa
    Countries
    Benin; Kenya
    Journals
    Bulletin of Entomological Research
    Collections
    • Journal and Journal Articles4835
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