Journal of Entomological Research

SCOPUSWeb of Science
  • Year: 2025
  • Volume: 49
  • Issue: 1

Comparative morphometric measurements of different development stages of Callosobruchus chinensis in five different pulses

  • Author:
  • Tumma Mounika*, Tapan Kumar Hath1, S.K. Sahoo1, Nipa Biswas2, M.K. Debnath3
  • Total Page Count: 4
  • Page Number: 64 to 67

Department of Agricultural Entomology, Centurion University of Technology and Management, R. Sitapur, Paralakhemundi - 761 211, Odisha, India

1Department of Entomology, Uttar Banga Krishi Vishwavidyalaya (UBKV), Pundibari, Coochbehar - 736 165, West Bengal, India

2Department of Seed Science and Technology, UBKV, Coochbehar, West Bengal

3Department of Agricultural Statistics, UBKV, Coochbehar, West Bengal

Abstract

The study found that Callosobruchus chinensis (pulse beetle) undergoes five stages in its life i.e., egg, grub (from 1st to 4th instar), prepupal, pupal & adult stages. The developmental stages of the pulse beetle were examined over two consecutive generations and across two seasons in five selected pulses: chickpea, cowpea, lentil, pea and rajma. Among all the pulses, the size (length and breadth) of the egg was biggest in cowpea (0.60 and 0.35 mm) followed by rajma (0.58 and 0.33 mm, respectively) and smallest in lentil (0.48 and 0.28 mm, respectively). The size of adult male was biggest in cowpea (4.81 and 2.71 mm, respectively) and smallest in lentil (4.33 and 2.11 mm, respectively). Adult females were always bigger than males. Developmental stages of C. chinensis were biggest on cowpea and smallest in lentil.

Keywords

Adult, Callosobruchus chinensis, Grub, Morphometric, Pulses, Pupa, Stages