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    Bioactivity of essential oils of Cymbopogon citratus (DC) Stapf and Cymbopogon nardus (L.) W. Watson from Benin against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips

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    Journal Article (717.4Kb)
    Date
    2020-08-18
    Author
    Loko, Y.L.E.
    Fagla, S.M.
    Kassa, P.
    Ahouansou, C.A.
    Toffa, J.
    Glinma, B.
    Dougnon, V.
    Koukoui, O.
    Djogbenou, S.L.
    Tamὸ, M.
    Gbaguidi, F.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Dinoderus porcellus L. (Coleoptera: Bostrichidae) is a most abundant and damageable pest of stored yam chips in West Africa. In view of the negative effects related to the use of synthetic chemical insecticide, it is important to develop alternative eco-friendly methods of control, such as the use of plant essential oils. The chemical composition and biological effects (repellent, antifeedant, contact and fumigant toxicity) of essential oils from Cymbopogon citratus (DC) Stapf and Cymbopogon nardus (L.) W. Watson were evaluated for the first time against D. porcellus. The chemical composition of C. citratus essential oil revealed that neral (24.64%), geranial (23.46%), and beta-pinene (21.90%) were the predominant compounds whereas citronellal (37.87%), nerol (19.88%) and citronellol (9.11%) were identified in C. nardus essential oil. Data showed that both essential oils were more effective as repellents and fumigant than the commercial insecticide Actellic 50 EC. The results also revealed the low contact toxicity of C. citratus and C. nardus essential oils against D. porcellus. However, similarly to Actellic 50 EC, C. citratus essential oil presented good antifeedant activity against D. porcellus and reduced yam chips weight loss. The results obtained suggest the good potential of C. citratus as both antifeedant and fumigant toxic agent against D. porcellus. While, C. nardus essential oil could be recommended as repellent. However, further studies are required to evaluate the insecticidal activity of both Cymbopogon essential oils under farmers’ storage conditions and to develop a good formulation as biopesticide.
    https://dx.doi.org/10.1007/s42690-020-00235-3
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6953
    IITA Authors ORCID
    Manuele Tamòhttps://orcid.org/0000-0002-5863-7421
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1007/s42690-020-00235-3
    Research Themes
    Plant Production and Health
    IITA Subjects
    Aflatoxin; Agronomy; Plant Health; Plant Production; Yam
    Agrovoc Terms
    Cymbopogon; Cymbopogon Citratus; Dioscoreaceae; French fries; Food Crops; Bioactive Properties; Yams; Lemon Grass
    Regions
    Africa; West Africa
    Countries
    Benin (Dahomey)
    Hubs
    Headquarters and Western Africa Hub
    Journals
    International Journal of Tropical Insect Science
    Collections
    • Journal and Journal Articles4835
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