Effect of Rearing Methods on Spodoptera litura (F.) under Laboratory Condition
Keywords:Spodoptera litura, artificial diet, rearing methods, adult emergence, reproductive competence, larval growth index, pupal growth index, larval survival, pupal survival
Effects of natural and artificial diets under two rearing methods (group and individual) on larval and pupal development and survivability of Spodoptera litura (Fab.) were studied. The survival rate of larvae and pupae was significantly affected by diets (P = 0.05), which was higher on artificial diet when reared individually. Results of this study documented the higher larval and pupal growth index from artificial diet. The larval growth indices were 5.24 and 1.65 on artificial diet under individual group rearing, respectively, and 2.35 on natural diet under group rearing. The developmental periods of larvae and pupae were not significantly affected by diets, which were shorter on artificial diet reared in group.
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