Applied Ecology and Environmental Sciences
ISSN (Print): 2328-3912 ISSN (Online): 2328-3920 Website: http://www.sciepub.com/journal/aees Editor-in-chief: Alejandro González Medina
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Applied Ecology and Environmental Sciences. 2020, 8(3), 87-91
DOI: 10.12691/aees-8-3-3
Open AccessArticle

Effect of Abiotic Factors on the Life Cycle of Spodoptera litura Fabricius, 1775 (Lepidoptera: Noctuidae)

Purohit Hardik1, and Kumar Dolly1

1Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, India

Pub. Date: April 23, 2020

Cite this paper:
Purohit Hardik and Kumar Dolly. Effect of Abiotic Factors on the Life Cycle of Spodoptera litura Fabricius, 1775 (Lepidoptera: Noctuidae). Applied Ecology and Environmental Sciences. 2020; 8(3):87-91. doi: 10.12691/aees-8-3-3

Abstract

Influence of abiotic factors was studied on Spodoptera litura Fabricius, 1775 by decreasing temperature & humidity from the optimum conditions (27±2°C Temp & 70±5 % RH). As a result of fluctuation, insect can shorten or elongate their life cycle. Two ranges which were taken for these studies were 40% humidity & 20°C temperature. At normal condition generation time was 35-36 days but at 40% humidity it was prolonged to 48-50 days & at 20°C temperature it was prolonged to 47-49 days. It was observed that when we decrease temperature & humidity from optimum conditions the life cycle elongates. At optimum condition, 40% humidity & 20°C temperature larval growth index was 5.09, 3.15 & 3.32, pupal growth index was 19.96, 16.56 & 16.39 & total developmental index was 2.82, 2.00 & 2.00 respectively. From the results we can see the influence of abiotic factors like temperature and humidity on the lifecycle of Spodoptera litura which can help in the prediction of population dynamics of insect pests.

Keywords:
abiotic factors humidity temperature Spodoptera litura

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