Studies on life fecundity tables of Spodoptera litura (Fabricius) on groundnut

Studies on life fecundity tables of Spodoptera litura, were carried out on groundnut cv. GG 20 at constant temperature of 271°C under laboratory. The net reproductive rate (Ro) was 510.79 females with the generation period (T) of 35.67 days. The innate capacity for increase (Rm) and finite rate of increase () were found to be 0.1748 and 1.1910 females/day, respectively with a weekly multiplication rate of 3.3994 times. The % contribution of eggs, larvae, pupae and and adults were 52.0, 46.4, 1.3 and 0.3%, respectivlely at stable age distribution of S. litura on groundnut.