Feeding and reproductive potential of Chrysoperla carnea (Stephens) on sucking pests and neonates of noctuids
Abstract
The experiment was planned with ten hosts viz. nymphs of cowpea aphid, cotton aphid, citrus psylla, mealy bug, cotton white fly, cotton Jassid, neonates of H. armigera, E. vitella, S. litura and eggs of C. cephalonica. The observation were recorded on the different biological parameters viz. feeding potential, pre-oviposition period, adult longevity and fecundity of predator. The feeding as well as reproductive potential of C. carnea was significantly influenced by the preys. A female laid maximum number of 450.00 eggs when the larva consumed maximum number of 548.25 eggs of C. cephalonica; whereas the minimum reproductive potential (57.73 eggs/female) were found on the minimum consumption (36.83 host/larva) of nymphs of mealy bug. The eggs of C. cephalonica also recorded shortest pre-oviposition period of predator as 4.19 days and the longest period was expressed on nymphs of mealy bug.
Keywords
Feeding potential, Chrysoperla carnea, Noctuids, Sucking pests