Journal of Entomological Research
SCOPUSWeb of Science
  • Year: 2011
  • Volume: 35
  • Issue: 4

Influence of seasonal variation of temperature and relative humidity levels on the developmental stages and growth index of Leucinodes orbonalis Guen. (Lepidoptera: Pyraustidae) in semi-arid region of Rajasthan

  • Author:
  • Anjali Mathur, N.P. Singh, Mahesh Meena
  • Total Page Count: 4
  • Page Number: 303 to 306

Entomology Lab., Department of Zoology, University of Rajasthan, Jaipur-302 055, Rajasthan, India

*Corresponding author's E-mail: anjalipcr@yahoo.co.in

Online published on 24 January, 2012.

Abstract

A highly significant and negative correlation was observed between maximum and minimum temperature and preoviposition period (p = 0.001, r = -0.812) while a significant positive correlation was seen with ovipositonal period (p = 0.01, r = 0.842). The incubation period increased with the fall in temperature with a negative correlation (r = -0.826) but percent hatchability reduced as winter approached. A non significant difference was observed with relative humidity. Moderate to high temperature and relative humidity favors the development of L. orbonalis with highest growth index of 1.09 during the period of June – August.