Indian Journal of Entomology
Open Access
SCOPUSWeb of Science
  • Year: 2024
  • Volume: 86
  • Issue: 1

Juvenile hormone-induced abnormality of Periplaneta americana (L.)

  • Author:
  • Nirmali Borah1,*, Lakshmi Kanta Hazarika2
  • Total Page Count: 6
  • Published Online: Apr 19, 2024
  • Page Number: 81 to 86

1Department of Entomology, Biswanath College of Agriculture, Biswanath, 784176, Assam, India

2Department of Entomology, Assam Agricultural University, Jorhat, 785013, Assam, India

*Email: nirmaliborah32@gmail.com (corresponding author): ORCID ID 0000-0002-9369-0615

Online Published on 20 April, 2024.

Abstract

Application of juvenile hormone III (JH III) and a JH analogue, methoprene to last instars of Periplaneta americana suppressed adult emergence and caused morphological abnormalities such as twisted wings and asymmetry of appendages resulting in formation of either nymphoids or giant supernumerary nymphs and adultoids. The effects of JH III and methoprene were concentration dependent in inducing aberrations in morphogenetic moult as well as in significantly lowering the body mass (BM) and lipid reserves (LR) in P. americana.

Keywords

Periplaneta americana growth hormone, JH analogue, Methoprene, Morphology, Appendages, Body, Lipid content, Nymphoids, Giant nymphs, Adultoids