Lale, N.E.S.Lawan, M.Ajayi, Folorunso A.2023-12-112023-12-112002-01-01N. E.S. LALE, M. LAWAN and F. A. AJAYIhttps://keffi.nsuk.edu.ng/handle/20.500.14448/3037The effects of temperature, yeast and polishing (removal of bran) on the development of Tribolium castaneum (Herbst) in flour derived from millet, sorghum, maize and wheat were in- vestigated for one generation in Maiduguri, Nigeria. Signifi- cantly more T. castaneum adults and larvae developed in flour stored at 35 °C than in flour stored at 30 ٠c or 40 و ه mortal- ity of adult beetles in flour stored at 40 °C was 95 % in sorghum and maize and 100 % in millet and wheat. Addition of three levels (2.5,5.0 and 10.0 %, w/w) of yeast to cereal flour, on av- erage, significantly increased the population of adult and lar- val progenies relative to the population in yeast-free flour. Considerably higher number of adult beetles developed in wholemeal than in polished flour derived from millet.enArticle