Biological parameters and predatory potential of Chrysoperla carnea (Neuroptera: Chrysopidae) feeding on wheat aphid Schizaphis graminum (Hemiptera: Aphididae) under laboratory conditions
2013
Khan, J. (National Agricultural Research Centre, Islamabad (Pakistan). Dept. of Plant and Environmental Protection) | Ehsan-ul-Haq (National Agricultural Research Centre, Islamabad (Pakistan). Dept. of Plant and Environmental Protection) | Javed, H.I. (National Agricultural Research Centre, Islamabad (Pakistan). Dept. of Plant and Environmental Protection) | Mahmood, T. (National Agricultural Research Centre, Islamabad (Pakistan). Dept. of Plant and Environmental Protection) | Rasool, A. (National Agricultural Research Centre, Islamabad (Pakistan). Dept. of Plant and Environmental Protection) | Akhtar, N. (National Agricultural Research Centre, Islamabad (Pakistan). Dept. of Plant and Environmental Protection) | Abid, S. (National Agricultural Research Centre, Islamabad (Pakistan). Social Sciences Research Inst.)
Studies on biological parameters of Chrysoperla carnea (Stephens) on Schizaphis graminum (Rondani) aphid were carried out in Insecatry - Bio control Laboratories, Insect Pest Management Programme, Department of Plant and Environmental Protection, National Agricultural Research Centre, Islamabad, Pakistan. The results indicate that incubation period was 3.8 plus minus 0.08 days with 87.0% hatchability. The developmental duration of first, second and third instar larvae were 3.2 plus minus 0.13, 4.0 plus minus 0.21 and 4.8 plus minus 0.25 days, respectively. The total larval developmental duration was 12.0 plus minus 0.67 days with 85.05% survival rate of larvae. The larval predatory potential was 414.6 plus minus 0.05 aphid per larvae. The total duration and survival rate from egg to adult emergence was 24.6 plus minus 0.06 days with 73% survival rate. The pre-oviposition, oviposition and post-oviposition periods were 9.2 plus minus 1.25, 34.6 plus minus 1.72 and 7.4 plus minus 1.02 days, respectively. The female and male longevity was 51.2 plus minus 2.18 and 32.4 plus minus 2.04 days respectively. The female fecundity was 384.2 plus minus 21.20 eggs per female with 11.16 plus minus 1.31 eggs per day per female.
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