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    Horizon scanning to assess the bioclimatic potential for the alien species Spodoptera eridania and its parasitoids after pest detection in west and central Africa

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    Journal Article (2.460Mb)
    Date
    2021
    Author
    Tepa‐Yotto, G.
    Gouwakinnou, G.N.
    Fagbohoun, J.R.
    Tamò, M.
    Sæthre, M
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    BACKGROUND The southern armyworm (SAW) Spodoptera eridania (Stoll) (Lepidoptera: Noctuidae) is native to the tropical Americas where the pest can feed on more than 100 plant species. SAW was recently detected in West and Central Africa, feeding on various crops including cassava, cotton, amaranth and tomato. The current work was carried out to predict the potential spatial distribution of SAW and four of its co-evolved parasitoids at a global scale using the maximum entropy (Maxent) algorithm. RESULTS SAW may not be a huge problem outside its native range (the Americas) for the time being, but may compromise crop yields in specific hotspots in coming years. The analysis of its potential distribution anticipates that the pest might easily migrate east and south from Cameroon and Gabon. CONCLUSION The models used generally demonstrate that all the parasitoids considered are good candidates for the biological control of SAW globally, except they will not be able to establish in specific climates. The current paper discusses the potential role of biological control using parasitoids as a crucial component of a durable climate-smart integrated management of SAW to support decision making in Africa and in other regions of bioclimatic suitability.
    https://dx.doi.org/10.1002/ps.6478
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7149
    IITA Authors ORCID
    Ghislain Tepa-Yottohttps://orcid.org/0000-0002-9650-8313
    Manuele Tamòhttps://orcid.org/0000-0002-5863-7421
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1002/ps.6478
    Research Themes
    Biotech and Plant Breeding; Plant Production and Health
    IITA Subjects
    Agronomy; Cassava; Climate Change; Disease Control; Pests of Plants; Plant Breeding; Plant Diseases; Plant Health; Plant Production
    Agrovoc Terms
    Spodoptera Frugiperda; Climate Change; Biological Control; Cassava; Cotton; Tomatoes; Pest Management
    Regions
    Africa; West and Central Africa
    Countries
    Cameroon; Gabon
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Pest Management Science
    Collections
    • Journal and Journal Articles4835
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