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    Predation and reproductive output of the ladybird beetle Stethorus tridens preying on tomato red spider mite Tetranychus evansi

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    Date
    2008
    Author
    Britto, E.P.
    Gondim, M.G.
    Torres, J.B.
    Fiaboe, K.K.M.
    Moraes, G.J.
    Knapp, M.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Predatory behaviour and reproductive output of the ladybird beetle Stethorus tridens Gordon as function of the tomato red spider mite (TRSM), Tetranychus evansi Baker & Pritchard, densities was investigated in the laboratory. Adult female of S. tridens were isolated in cylindrical plastic arenas, containing a leaf disc of Solanum americanum Mill. with 5, 20, 40, 60, 80 or 100 T. evansi nymphs. The number of prey consumed and eggs laid were evaluated daily for ten consecutive days, starting at the oviposition. Oviposition of S. tridens was positively correlated with prey consumption and lower threshold prey consumption for S. tridens laying eggs was 16.3 mites per day. The instantaneous rate of attack (ca. discovery area) and the handling time were 0.0062 h-1 and 0.83 h, and 0.00254 h-1 and 0.78 h, respectively, for predators at the 1st- and 10th-oviposition day. The predator exhibited a type II functional response at 1st- and 10th-oviposition day with a maximum consumption per predator of 33 T. evansi nymphs per day at the highest prey density. The ladybird beetle S. tridens is often collected associated with red spider mite colonies on solanaceous wild plants and the results suggest the potential of this ladybird beetle to control T. evansi in tomatoes crops.
    https://dx.doi.org/10.1007/s10526-008-9178-5
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/2914
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1007/s10526-008-9178-5
    IITA Subjects
    Plant Production; Plant Health; Plant Diseases; Post-Harvesting Technology; Plant Ecology; Pests Of Plants; Markets; Disease Control
    Agrovoc Terms
    Biological Control; Functional Response; Ladybird Beetle; Predation; Spider Mite; Tetranychus Evansi Nymphs
    Regions
    Acp; Africa; South America; East Africa
    Countries
    Brazil; Uganda; Kenya
    Collections
    • Journal and Journal Articles4835
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