Laboratory data show that populations of flour beetles (1ribolium), when grown in a periodically fluctuating volume of flour, can exhibit significant increases in numbers above those attained when grown in a constant volume (of the same average). To analyze and explain this phenomenon a discrete stagestructured model of 1ribolium dynamics with periodic environmental forcing is introduced and st...

The types and numbers of insect species associated with eight Kansas retail stores belonging to a pet store chain were surveyed during February to August 2001. Insects were monitored at 1-3-wk intervals using food- and pheromone-baited pitfall traps for beetles and pheromone-baited sticky traps for moths. Thirty traps of each type were placed within a store. Thirty insect species belonging to 2...

This paper presents evidence for the occurrence of proteinaceous inhibitors isolated from Chick pea (Cicer arietinum), Kidney bean (Phaseolus vulgaris), Maize seeds (Zea mays), Wheat (Triticum aestivum) and Millet (Pennisetum typhoides). These seeds inhibitors exhibited inhibitory activity against alpha amylase from red flour beetle, T. castaneum. Out of five tested seed samples Wheat, Maize an...

The influence of four cereals namely, flours of wheat (Triticum aestivum L.), millet (Pennisetum glaucum L.), sorghum (Sorghum bicolor (L.)Moench) and maize (Zea mays L.)on the growth and development of T. castaneum was investigated at ambient tropical laboratory conditions of 30±3 ̊C and relative humidity of 75±5%. The antinutrients, mineral profile and proximate compositions of the four flour ...