Surveying effect kind of food on Biological parameters on Chrysoperla carnea (Neuroptera: Chrysopidae) under laboratory Conditions

Abstract

Chrysoperla carnea (steph.) is a major, cosmopolitan predator of some whiteflyand Aphid. This research was evaluated relative consumption of three diets andeffects of prey kinds on developmental times, mortality percentage of larvae andpupae, consumption rate, longevity, fecundity, fertility, and sex ratio on C.carnea. Alllarvae stages and adults were reared on the different diets: 3rd nymphal stagesShizaphis graminum, and Bemisia tabaci (Biotype B), or a semi artificial diet (consistof honey, yeast, essential amino acid, and Distilled water) (10%, 15%, 25%, 2.5%,and 47.5%). All experiments were conducted at 25±50C, 60±5% RH, and photoperiodof 16:8 (L:D). Larval stages consumed 192.1±2.57 (no.) nymph Shizaphis graminum,and 479.7±4.08 nymph Bemisia tabaci in which results show significant differencebetween hosts consumed by larvae .There were significant differences between rate ofoviposition, larvae longevity 12.29±0.81, 14.02±0.9 and 10.07±0.3 day ,fertility ,andsex ratio on different diets (female: male when larvae fed on age of nymph Shizaphisgraminum ,Bemisia tabaci and artificial diet was 53:47, 52:48 and 57:43).Considering above parameters, artificial diet can be a best choice for mass rearing C.carnea.