Biology and Morphometrics of Spodoptera litura (F.) on Castor

Authors

  • K. Ashok Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu
  • S. Pavithran Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu

DOI:

https://doi.org/10.55446/IJE.2021.261

Keywords:

Spodoptera litura, Castor, Biology, Morphometrics, Life Stages, Instars, Head Capsule, Growth Ratio, Dyar`s Law.

Abstract

Biology and morphometrics of Spodoptera litura (F.) was studied by rearing it on castor under laboratory conditions. Morphology of life stages i.e., egg, larva, pupa and adult along with development period were observed. The width of head capsule was observed at each moult as 0.19, 0.25, 0.45, 0.71, 1.31 and 2.13 mm, respectively. The mean growth ratio of S. litura was observed as 1.64, which indicated that increase in head width in instars was only slightly varying from Dyar’s law.

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Published

2022-04-08

How to Cite

Ashok, K., & Pavithran, S. (2022). Biology and Morphometrics of Spodoptera litura (F.) on Castor. Indian Journal of Entomology, 84(2), 456–458. https://doi.org/10.55446/IJE.2021.261

Issue

Volume 84, Issue 2, June 2022

Section

Research Communications
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