Abstract: A laboratory study was conducted on rearing of adult Green lacewing, Chrysoperla carnea (Stephens) on different artificial diets. Study was conducted under laboratory conditions at Department of Plant Protection, SAU, Tandojam, Sindh, Pakistan during 2013-14 to determined better artificial diet for mass rearing of adult C. carnea. Six diets containing water:honey:yeast i.e., D1 (20ml:2g:2g), D2 (20ml:4g:2g), D3 (20ml:6g:2g), water:sugar:yeast D4(20ml:2g:2g), D5 (20ml:4g:2g), D6 (20 ml:6g:2g) and two diets containing water:gur:yeast i.e., D7 (20ml:2g:2g), D8(20ml:4g:2g), D9 (20 ml:6g:2g) were tested. The results showed that maximum pre-oviposition period (11.5 ± 3.95 days) recorded, oviposition period (18.0 ± 0.91 days) and post-oviposition period (5.0 ± 0.71 days) was recorded on D4, D9 and D1, respectively. Minimum pre-oviposition period (7.25 ± 0.25 days), oviposition period (5.0 ± 1.73 days) and post-oviposition period (2.5 ± 0.87 days) was recorded on D8, D4, and D7, respectively. The highest fecundity (342.5 ± 89.55 eggs) was recorded on D9, whereas the lowest fecundity (42.5 ± 5.48 eggs) was recorded on D4. The eggs laid by female fed on D4 took lesser time (1.75 ± 0.66 days) to hatch. Maximum larval and pupal longevity was recorded in larvae of adults fed on D9. The adults lived longer for 30.0 ± 0.91 days on D9. The maximum egg hatching (55 %), larval-pupal transformation (45 %) and adults emergence (30 %) was recorded on D9. It is concluded that D9was found the best one for mass rearing of adult C. carnea.
Keywords: C. carnea, Development time, Biology, Survival, Artificial diets.