Assessment of Stored Flour Types and Effectiveness of Freezing, Sun-Drying and Hermetic Storage in the Management of Red Flour Beetle, Triboliumcastaneum (Herbst) in Ilorin

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dc.contributor.authorYusuf, R.O.
dc.contributor.authorOjumoola, A.O.
dc.contributor.authorUddin II, R.O.
dc.contributor.authorAdesiyun, A.A.
dc.date.accessioned2021-09-14T14:24:45Z
dc.date.available2021-09-14T14:24:45Z
dc.date.issued2020
dc.description.abstractInfestation and contamination of flour by the red flour beetle, Tribolium castaneum (Herbst) is a major constraint to flour storage especially in many households of sub Saharan Africa region. Unlike grain protection, flour protection does not lend itself to the use of plant powders, ash, sand and other admixture-based materials often employed by householders in the region as innocuous and cheap alternatives to synthetic insecticides. Scanty information however exists on how effective the few methods used for stored grains insect pest management will be for stored flour. In this study, flour use and T. castaneum management practices of householders in Ilorin, Nigeria was investigated in a survey using questionnaires. Effects of different duration of freezing, sun-drying and hermetic storage treatments on adult and larval mortality of T. castaneum and on population growth in three commonly stored flour types identified during the survey were also evaluated in the laboratory at the Department of Crop Protection, University of Ilorin, Ilorin Nigeria. Furthermore, the effect of each physical method on organoleptic characteristics of treated flour types was assessed. Results showed that semolina, yam and wheat flours were most preferred by householders in the study area. In addition, 12 hours of freezing and 6 hours of sun-drying significantly (p<0.05) caused complete adult and larval mortalities (100.0%) while also preventing population increases in the three most preferred flour types even after 3 months of post-treatment storage. In contrast, hermetic storage treatment for 336 hours caused lower (p<0.05) mean percentage mortalities (6.0% - 16.0%; 7.0% - 12%) and higher post-treatment storage population changes (11.20 – 16.60; 160.60 – 189.80) of T. castaneum adults and larvae respectively in all the flour types. However, none of the treatments negatively affected the organoleptic characteristics of the flours at p=0.05. Information provided in this study will enhance utilization of locally available physical methods for effective management of T. castaneum in the stored flours.en_US
dc.identifier.citationYusuf, R.O., Ojumoola, A. O., Uddin II, R.O. &Adesiyun, A.A. (2020): Assessment of Stored Flour Types and Effectiveness of Freezing, Sun-Drying and Hermetic Storage in the Management of Red Flour Beetle, Triboliumcastaneum (Herbst) in Ilorin. Applied Tropical Agriculture, 25:2en_US
dc.identifier.urihttps://uilspace.unilorin.edu.ng/handle/20.500.12484/6312
dc.language.isoenen_US
dc.publisherSchool of Agriculture and Agricultural Technology, Federal University of Technology, Akure, Nigeriaen_US
dc.subjectFlouren_US
dc.subjectTribolium castaneumen_US
dc.subjectfreezingen_US
dc.subjectsun-dryingen_US
dc.subjecthermetic storageen_US
dc.subjectIlorinen_US
dc.titleAssessment of Stored Flour Types and Effectiveness of Freezing, Sun-Drying and Hermetic Storage in the Management of Red Flour Beetle, Triboliumcastaneum (Herbst) in Ilorinen_US
dc.typeArticleen_US

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