Influence of adult diet on the fecundity and survival of the predator,Chrysopa scelestes [Neur.: Chrysopidae

Abstract

Studies were conducted in the laboratory to determine the most suitable diet for adults ofChrysopa scelestes Banks that would result in the maximum fecundity and longevity, without adversely affecting hatchability. Out of 6 adult diets tested, the died containing 40% honey and pollen grains of castor,Ricinus communis L. has influenced upon the female for production of more eggs. On an average, 796 eggs were laid in 36.83 reproductive days, this was followed by Protinex® + fructose + pollen grains and honeydew of mealy bug,Planococcus citri (Risso) + pollen grains. The diet consisting of 40 % honey had little effect either on the per day reproduction or on the effective ovipositional period for total number of egg production. Pre-ovipositional period was observed to be extended in 40% honey followed by honeydew ofP. citri + pollen grains. Hatching of larvae was found to be not affected by various diets.