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    Cycle biologique duree des stades larvaires du criquet puant, Zonocerus variegatus (Linne, 1758) (Orthoptera: Pyrgomorphidae) au sud du Benin

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    Date
    2000
    Author
    Douro-Kpindou, O.K.
    Lomer, C.
    Langewald, J.
    Bocco, Y.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The life cycle and development of Zonocerus variegatus (variegated grasshopper) from southern Benin was studied at the International Institute of Tropical Agriculture (IITA) Benin Station, from March 1992 to August 1994. Hoppers of the 1st to the 5th stage were collected from uncultivated fields in the Atlantic Province and placed in cages and their development evaluated by counting the number of insects in each stage every two days until the adult stage. Mating and the number of egg pods were also recorded. The study showed that Z. variegatus has only one generation in southern Benin, running from September/October to July/August. Hatching occurs between September/ October and February/March. Zonocerus variegatus females can oviposit up to five times and the interval between ovipositions varies from 14 to 32 days. The variegated grasshopper has an egg diapause and egg hatching is not synchronised. These observations explain the almost perennial presence of the variegated grasshopper in southern Benin.
    https://doi.org/10.1017/S1742758400018749
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5305
    Digital Object Identifier (DOI)
    https://doi.org/10.1017/S1742758400018749
    IITA Subjects
    Pests Of Plants; Plant Health; Gender
    Agrovoc Terms
    Grasshoppers; Females
    Regions
    Africa; West Africa
    Countries
    Benin
    Collections
    • Journal and Journal Articles4835
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