Life cycle, morphometrics and damage assessment of the Khapra beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae) on stored groundnut
2009
Musa, A.K., University of Ilorin, Ilorin (Nigeria). Department of Crop Protection, Entomology Unit | Dike, M.C., Ahmadu Bello University, Zaria (Nigeria). Department of Crop Protection, Entomology Unit
The life cycle of Khapra beetle, Trogoderma granarium on stored groundnut was studied under fluctuating laboratory conditions of 25+/-5 deg C and 70+/-5 relative humidity. There were five larval instars and the total development time from egg to adult ranged from 37 to 40 days with an average 37.95 days. The duration of each development stage was egg: 6.05 days, instar: 3.8 days, second instar: 4.7 days, third instar: 5.6 days, fourth instar: 6.2 days, fifth instar: 6.8 days, and pupa: 4.8 days. Females had an average fecundity of 80.2 eggs. Mean adult longevity was 12.4 days.
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