Bio ecology of rice moth Corcyra cephalonica (Stainton) on groundnut seeds
Biology of rice moth, Corcyra cephalonica (Stainton) was studied under controlled conditions at a temperature of 27 1.8 0C and 70 4.5% relative humidity in laboratory on groundnut variety GG 20, respectively. The mean length of eggs, full grown larva, pupa and adult wing span were 0.39 0.03, 9.37 0.71, 8.56 0.55, 17.45 1.37 (male) and 18.37 1.66 (female) mm, respectively. Duration of egg, larva, pupa and adult ranged from 4.16 0.80, 43.65 4.52, 9.1 0.96, 7.85 0.87 (male) and 8.55 0.94 (female) days, respectively. The average fecundity of rice moth was 202.2 44.57 eggs with a 94% hatching. The survival percentage (S) mean development period (D) and growth index were 90 percent, 58.36 days and 1.54, respectively. The sex ratio of rice moth was 1:1.05.