International Journal of Agriculture Environment and Biotechnology
  • Year: 2024
  • Volume: 17
  • Issue: 3

Bioprospecting Capsicum chinense Fruit Powder Against Callosobruchus chinensis (Coleoptera : Bruchidae)

  • Author:
  • Semigga Wilberforce1, Surajit Kalita2,*, Junmoni Gayon3
  • Total Page Count: 6
  • Published Online: Mar 24, 2025
  • Page Number: 589 to 594

1Luwero District Local Government, P.O. Box 68, Luwero, Uganda

2Directorate of Research (Agri), Assam Agricultural University, Jorhat, Assam, India

3Department of Entomology, Assam Agricultural University, Jorhat, Assam, India

*Corresponding author: surjit_kalita@yahoo.com, (ORCID ID: 0000-0002-2049-5042)

Paper No. 1172

Abstract

The bioefficacy evaluation of Capsicum chinense fruit powder against Callosobruchus chinensis attacking green gram seeds showed a dose-dependent adult mortality (16.67 - 55.00%) at 96 hours after treatment (HAT) with a positive correlation to the exposure period. The lowest LC50 value of 13.04 g/100.0 g of green gram seed was recorded at 96 HAT. Admixing of C. chinense fruit powder recorded the lowest adult emergence (36.00%) at a dosage of 10.0 g/100.0 g seed after 23 days of treatment suggesting strong ovicidal properties, as against 91.50% adult emergence in the control.

⓿ Pulse beetle, Callosobruchus chinensis L. (Coleoptera : Bruchidae), is the most widely distributed insect pest causing up to 100% damage.

⓿ The insecticidal properties of Capsicum sp. has successfully been demonstrated against several insect pests.

⓿ Capsicum chinense fruit powder showed both insecticidala and ovicidal properties.

⓿ The highest of 55.00% adult mortality at dosage of 10 g per 100 g seed with a LC50 values of 13.04 g/100 g seeds.

⓿ Capsicum chinense fruit powder showed 64.0% reduction in adult emergence at dosage of 10 g per 100 g seed.

Keywords

Capsicum chinense, Callosobruchus chinensis, Adult mortality, Ovicidal property