• Contact Us
    • Send Feedback
    • Login
    View Item 
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    Whole Repository
    CollectionsIssue DateRegionCountryHubAffiliationAuthorsTitlesSubject
    This Sub-collection
    Issue DateRegionCountryHubAffiliationAuthorsTitlesSubject

    My Account

    Login

    Welcome to the International Institute of Tropical Agriculture Research Repository

    What would you like to view today?

    Population dynamics of the predator Alloeocranum biannulipes Montrouzier and Signoret (Hemiptera: Reduviidae) feeding on the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae), infesting cassava chips

    Thumbnail
    View/Open
    Journal Article (1.090Mb)
    Date
    2020
    Author
    Loko, Y.L.E.
    Onzo, A.
    Datinon, B.
    Akogninou, L.
    Toffa, J.
    Dannon, E.
    Tamo, M.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Functional and numerical responses of adult females of the predatory bug Alloeocranum biannulipes Montrouzier and Signoret (Hemiptera: Reduviidae) to density changes of the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae), infesting cassava chips were investigated under laboratory conditions. Starved predators were exposed to different prey density as treatments with 6 replicates. Numbers of prey consumed, eggs laid, and adults emerged as well as the hatching rates were recorded daily. When feeding on the larvae of P. truncatus, consumption increased linearly (R2 = 0.858) with the increase in larval density. At the highest pupal density of 6 P. truncatus pupae per predator, A. biannulipes adult showed the highest consumption rates (1.67 pupae). The Holling’s type I and III functional responses were observed when A. biannulipes consumed P. truncatus larvae and pupae, respectively. The attack of the predator estimated to 0.027 h−1 for larvae and 0.125 h−1 for pupae. The handling time spent on pupae by the adult predator was 0.352 h with a theoretical daily maximum predation (T/Th) of 68.18 pupae of P. truncatus. The numerical response of A. biannulipes was positively linked to pupal density, with more eggs laid per female, and higher hatching rate when exposed to higher prey densities. Efficiency of food conversion into eggs by A. biannulipes increased with decreasing larval densities and remained constant with increasing pupal densities. These functional and numerical responses exhibited by A. biannulipes suggest that this predator can effectively control P. truncatus larvae at low densities and pupae both at low and high densities. Therefore, A. biannulipes could be a good candidate for the biological control of P. truncatus
    https://dx.doi.org/10.1186/s41938-020-00240-1
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7449
    IITA Authors ORCID
    Elie Dannonhttps://orcid.org/0000-0002-7323-6212
    Manuele Tamòhttps://orcid.org/0000-0002-5863-7421
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1186/s41938-020-00240-1
    Research Themes
    Plant Production and Health
    IITA Subjects
    Cassava; Disease Control; Pests of Plants; Plant Health; Plant Production
    Agrovoc Terms
    Cassava; Prostephanus Truncatus; Biological Control; Pests of Plants; Predators; Reproductive Performance
    Regions
    Africa; West Africa
    Countries
    Benin (Dahomey)
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Egyptian Journal of Biological Pest Control
    Collections
    • Journal and Journal Articles4836
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository