Biocontrol laboratory, Department of Entomology, G.B. Pant University of Agriculture and Technology, Pantnagar-263 145, India
*Part of M.Sc. (Ag.) thesis submitted to G.B.P.U.A.&T., Pantnagar-263 145
The effect of different host insects on biological attributes of Chrysoperla carnea was studied. Shortest adult period (36.67 days) of C. carnea was recorded when fed on unsterilized eggs of Corcyra cephalonica, while, longest adult period of (49.67 days) was recorded on neonates of Helicoverpa armigera. The maximum larval period (15.33 days) were recorded on neonates of Clostera fulgurita and shortest larval period (6.17 days) recorded on sterilized eggs of C. cephalonica. It was observed that development of C. carnea larvae on eggs of different hosts required less duration than the neonates of different lepidopterans. Larval weight of C. carnea varied from maximum (10.15 mg) on sterilized eggs of C. cephalonica to minimum (8.41 mg) on eggs of Spodoptera litura. The pupal period of C. carnea was found between 8.33 days on mustard aphid, L. erysimi to 5.00 days on both sterilized and unsterilized eggs of C. cephalonica. Larval and pupal development was quick on eggs of C.cephalonica, whereas, neonates of lepidopterans prolonged the development period of C. carnea.
Biology, Chrysoperla carnea, Host insects
