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    Development of sex pheromone traps for monitoring the legume podborer, Maruca vitrata (F.) (Lepidoptera: pyralidae)

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    U02InbkDownhamDevelopmentNothomNodev.pdf (190.2Kb)
    Date
    2002
    Author
    Downham, M.C.A.
    Tamo, M.
    Hall, D.
    Datinon, B.
    Dahounto, D.
    Adetonah, J.
    Type
    Book Chapter
    Metadata
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    Abstract/Description
    The Natural Resources Institute (NRI) and the International Institute of Tropical Agriculture (IITA) are collaborating to develop sex pheromone traps as monitoring tools for Maruca vitrata. The principal component of the pheromone is (E, E)-10, 12-hexadecadienal. Our trapping experiments in cowpea fields in Benin have shown that the optimal synthetic blend also contains small amounts of (E, E)-10, 12-hexadecadien-1-ol and (E)-10-hexadecenal. Polyethylene vial lures containing 0.1 mg of pheromone attracted more males than other combinations of dose or dispenser. Lures showed no loss of effectiveness for up to four weeks in the field. A water-trap made from a plastic jerry can was superior to commercial funnel- and sticky-trap designs and 120 cm was the optimum height for traps. Females comprised up to 50% of total catches with synthetic lures, though almost none were attracted to traps baited with live females. Preliminary observations indicated a temporal coincidence between catches in traps placed outside cowpea fields and the appearance of larvae in fields a few days later. Thus pheromone trap catches may predict larval infestations.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3736
    IITA Subjects
    Genetic Improvement; Pests Of Plants; Cowpea; Grain Legumes; Gender
    Agrovoc Terms
    Maruca Vitrata; Sex Pheromone Traps; Pests; Cowpeas
    Regions
    Africa; West Africa
    Countries
    Benin
    Collections
    • Journal and Journal Articles4835
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