alexa Studies on Life Fecundity Tables of Spodoptera Litura Fabricius on Tobacco Nicotiana tabacum Linnaeus
ISSN: 2161-0983

Entomology, Ornithology & Herpetology: Current Research
Open Access

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Research Article

Studies on Life Fecundity Tables of Spodoptera Litura Fabricius on Tobacco Nicotiana tabacum Linnaeus

Patil RA1, Mehta DM2 and Jat BL3*

1Department of Entomology, AAU, Anand, India

2Bidi Tobacco Research Station, AAU, Anand, Gujarat, India

3CCS Haryana Agricultural University, Hisar, Haryana, India

*Corresponding Author:
Jat BL
CCS Haryana Agricultural University
Hisar, Haryana, India
Tel:+919416441197
E-mail: [email protected]

Received date: December 08, 2013; Accepted date: January 04, 2014; Published date: January 08, 2014

Citation: Patil RA, Mehta DM, Jat BL (2014) Studies on Life Fecundity Tables of Spodoptera Litura Fabricius on Tobacco Nicotiana tabacum Linnaeus. Entomol Ornithol Herpetol 3:118. doi:10.4172/2161-0983.1000118

Copyright: © 2014 Patil RA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Our objective was to study the life fecundity tables of Spodoptera litura (Fabricius) reared on tobacco cv. Anand-119 under controlled condition at 26 ± 1°C. The data revealed that there was no mortality during egg stage and the maximum duration of egg, larval and pupa was 4, 25 and 9 days, respectively. The number that survived from 100 eggs to adult emergence was 58 individuals. The pre-oviposition period was ranged from 39th to 40th days of pivotal age. Females contributed highest number of progeny (mx = 580.13) in the life cycle on the 44th day of pivotal age. The net reproductive potential (Ro) obtained was 786.84 females with the mean length of generation period (T) 43.49 days. The innate capacity for increase (rm) and finite rate of increase (λ) were found to be 0.1542 and 1.1667 females / female / day, respectively with a weekly multiplication rate (λ) 7 of 2.94 times. The hypothetical F2 females were found to be 619121.30. The % contribution of eggs, larvae, pupae and adults were 54.81, 44.43, 0.65 and 0.08, respectively at stable age distribution of S. lituraon tobacco

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