Host type and textures on the survival of Tribolium castaneum (Coleoptera: Tenebrionidae) parental and filial generations
Berhanu Hiruy and Emana Getu
The effect of eight different hosts in different textures on survival of Tribolium castaneum was investigated. The result obtained indicated that survival of parental adult beetles was significantly (P<0.05) higher in broken grains and flours than in whole grains of all cereals both in the first and second generations. Significantly (P<0.05) higher number of larva, pupa and adult progenies emergence of T. castaneum was also recorded in flours and broken textures of cereals than in all textures of pulses both in the first and second generations. Besides, more larvae, pupae and adults progenies were emerged in damaged and flour textures of cereals during the first generation than in the second generation that in turn indicated quality degradation of grains as period and generation has increased. In conclusion, cereals in damaged and flour forms in general are the most preferred hosts of T. castaneum than pulses.