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    Associated cultivated plants in tomato cropping systems structure arthropod communities and increase the Helicoverpa armigera regulation

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    S19ArtDassouAssociatedInthomDev.pdf (297.4Kb)
    Date
    2019-04-10
    Author
    Dassou, A.G.
    Vodouhè, S.D.
    Bokonon-Ganta, A.
    Goergen, G.
    Chailleux, A.
    Dansi, A.
    Carval, D.
    Tixier, P.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Cultivating plant mixtures is expected to provide a higher productivity and a better control of pests and diseases. The structure of the arthropod community is a major driver of the magnitude of natural pest regulations. With the aim of optimizing pest management, a study was carried out to determine the effect of the cropping system type (tomato mono-cropping vs. mixed-cropping) on the diversity and abundance of arthropods from three trophic groups (herbivores, omnivores, predators) and the abundance of Helicoverpa armigera. Therefore, the diversity of cultivated plants and arthropod communities was assessed within tomato fields from 30 farmer's fields randomly selected in South of Benin. Results showed that the arthropod abundance was significantly higher in mixed-cropping systems compared with mono-cropping systems, although the crop type did not alter significantly the arthropod diversity, evenness, and richness. At the level of taxa, the abundances of generalist predators including ants (Pheidole spp., and Paltothyreus tarsatus) and spiders (Araneus spp. and Erigone sp.) were significantly higher in mixed fields than in mono-crop fields. Then, the abundances of omnivore-predator trophic groups have a negative significant effect on the H. armigera abundance. This study allowed better understanding of how plant diversity associated to tomato fields structures arthropod's food webs to finally enhance the ecological management of H. armigera.
    https://dx.doi.org/10.1017/S0007485319000117
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5861
    Non-IITA Authors ORCID
    Georg Goergenhttps://orcid.org/0000-0003-4496-0495
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1017/S0007485319000117
    Research Themes
    PLANT PRODUCTION & HEALTH
    IITA Subjects
    Plant Health; Plant Production
    Agrovoc Terms
    Ecological Control; Management; Food Webs; Helicoverpa Armigera; Ants
    Regions
    Africa; West Africa
    Countries
    Benin
    Journals
    Bulletin of Entomological Research
    Collections
    • Journal and Journal Articles5286
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