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Volume 01, Issue 01      January-March, 2013

Life table studies of Trilocha virescence (Bombycidae: lepidoptera) on Ficus nitida
 

Muhammad Asif Aziz1*, Ayesha Iftkhar1 and Muhammad Hanif2
1Department of Entomology, PMAS-Arid Agriculture University Rawalpindi, Pakistan
2Department of Mathematics and Statistics, PMAS-Arid Agriculture University Rawalpindi, Pakistan

*Corresponding author: e-mail: asifaziz572@gmail.com

Abstract

The life table of Trilocha virescence was constructed in the laboratory which is a serious Lepidopterous pest of Ficus nitida. The study declared different impact of larval and adult mortality on the population. Pre reproductive mortality was 30% and 70 percent of the individuals’ survived upto the maturity and took part in reproduction. Larval mortality was greater in 1st instar than all other stages. No mortality was observed in 4th and 5th larval instar in subsequent stages. High mortality during 1st instar may exert significant negative effect on the insect population and may be best used for applying control tactics. The net reproductive rate of the insect was 45.44 per individual per generation.

Keywords: Trilocha virescence, Stage specific, Life expectancy, Mortality rate, Survivorship

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