Department of Plant Science and Biotechnology

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Browsing Department of Plant Science and Biotechnology by Subject "Beans Weevil."

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    EVALUATION OF FOUR TYPES OF CITRUS FRUIT PEELS FOR THE CONTROL OF BEANS WEEVIL (Cullosobruchus maculatus) (F) ON STORED COWPEA
    (Department of Plant Science and Biotechnology, Nasarawa State University Keffi, 2010-11-08) Joshua, Alanana Abu; Umar, U.M.
    The results of two rates ofpowdered peels off our citrusfruits were evaluatedfor the Control ofb eans weevil [Callosobruchus maculatus (F)]. 200g of fumigated stored cowpea were introduced into the jar, each mixed with the powdered peels of Citrus sinensis, Citrus paraduscoca, Citrus limon and citrus quanarantifolia at two different rates of 20g and 40g, respectively. Ten matured Callosobruchus maculatus were introduced into the each jar at a fluctuating temperature of28° C 3(f C, and relative humidity of76 85%for three weeks. C. quarantifolia (lime orange) and Citrus limon (lemon) at two rates gave 2.23 3.00% and 2.653.45%, respectively, leveling to drastical control of Callosobruchus maculatus. The mortality rate of Callosobruchus maculatus treated at the interval of 3 days gave 90 100%. This is a positive attribute of the technology which could be utilized by localfarmersfor storing cowpea seedsfor the next planting season.