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Studies on life fecundity tables of L. orbonalis guenee on Brinjal

The life table of Leucinodes orbonalis was prepared from daily fecundity and survival of cohort, when larvae were reared on brinjal c.v. Shyamala at a temperature 26± 10 C. Results on the survival of different stages of L orbonalis indicated 10% mortality in the egg stage and with 20% and 28% mortality in the larval and pupal stages, respectively. The longest duration of egg incubation was 5 days, while the larval and pupal periods were 18 days and 11 days, respectively. | Studies on life fecundity tables of L. orbonalis guenee on Brinjal Int.J.Curr.Microbiol.App.Sci 2017 6 2 1620-1628 International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 6 Number 2 2017 pp. 1620-1628 Journal homepage http www.ijcmas.com Original Research Article http dx.doi.org 10.20546 ijcmas.2017.602.180 Studies on Life Fecundity Tables of L. orbonalis Guenee on Brinjal S. Ramesh and C. Narendra Reddy Department of Entomology College of Agriculture Rajendranagar PJTSAU Hyderabad-500030 India Corresponding author ABSTRACT The life table of Leucinodes orbonalis was prepared from daily fecundity and survival of Keywords cohort when larvae were reared on brinjal c.v. Shyamala at a temperature 26 10 C. Results on the survival of different stages of L. orbonalis indicated 10 mortality in the Leucinodes egg stage and with 20 and 28 mortality in the larval and pupal stages respectively. The orbonalis longest duration of egg incubation was 5 days while the larval and pupal periods were 18 Life table days and 11 days respectively. The number that survived from egg to adult emergence Brinjal. was 72 individuals. The net reproductive rate Ro was 136.35 with mean length generation Tc 38.05 days. The intrinsic rate of increase was 0.1294 females female-1day Article Info and population multiplied 2.4739 times in a week with generation time of 37.98 days on Accepted brinjal. The per cent contribution of eggs larval pupal and adults were 58.98 37.65 2.50 24 January 2017 and 0.42 respectively at stable age distribution of L.orbonalis on brinjal. Life expectancy Available Online of L. orbonalis on brinjal for newly deposited eggs was 13.24 days. The mortality rate was 10 February 2017 comparatively high at the age of 35 to 40 days when the expectation of further life was reduced to only 1.80 days from 13.24 days in the beginning. Introduction Brinjal Solanum melongena shoot and fruit trend. The study of life table of an insect borer Leucinodes .