The effect of different diets on the biological parameters of rice moth, Corcyra cephalonica Stainton (Lepidoptera: Pyralidae) was studied under laboratory condition during 2010 -2011 in the Department of Entomology, Assam Agricultural University, Jorhat, Assam. Among the six diets tested, rice, wheat and groundnut mixture (5:5:1) was found to be the superior rearing medium that enhanced quicker development period of Corcyra cephalonica, maximum fecundity and maximum fresh body weight of full grown larva for both summer and winter seasons. The quicker development period of Corcyra cephalonica were 36.30±0.58 and 48.80±0.33 in summer and winter, respectively whereas maximum fecundity were 175.60±0.13 and 157.65±2.64 in both the season. The maximum fresh body weight of full grown larva was 93.85±0.56 in summer and 84.70±1.05 in winter when Corcyra cephalonica reared in rice, wheat and groundnut mixture (5:5:1). Groundnut alone proved to be the least preferred by the Corcyra cephalonica so weak performance in all the parameters for this tested host of many natural enemies.How to view point the article : Rajkumari, P., Basit, A. and Sharmah, D. (2014). Effect of different diets on the biological parameters of rice moth, Corcyra cephalonica Stainton. Internat. J. Plant Protec., 7(2) : 397-400.

Pulse beetle, Callosobruchus chinensis is one of the major stored pests of pulses. There were various factors that influence the ovipositional behaviour of C. chinensis. The preference of host specificity for oviposition by the female pest is very important to lay maximum number of eggs and also for the survival of a species. Bigger size, smooth surface, deep coat and coloured seeds are the most suitable for oviposition. The combination of temperature and humidity also play important role in ovipositional behaviour of the pest. The numbers of egg deposition vary within the period of oviposition and the maximum eggs laid on the first day of oviposition decreases with the enhancement of period. Plant extracts may alter the ovipositional behaviour and could be one of best practical ability to control the destructive stored pest.