African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Insecticidal activity of Boscia senegalensis (Pers.) Lam ex Poir. on Caryedon serratus (Ol.) pest of stored groundnuts

Momar Talla GUEYE1*, Dogo SECK2, Seynabou BA1, Kerstin HELL3, Mbacké SEMBENE4, J-P.WATHELET5 and Georges LOGNAY6
  1Institut de Technologie Alimentaire, Hann-Dakar, BP 2765, Sénégal. 2Centre Régional de Recherche en Ecotoxicologie et Sécurité Environnementale (CERES/Locustox), km 15 Route de Rufisque, BP 3300  Dakar, Sénégal. 3CIP (International Potato Center) – BP 08 0932- Cotonou, Bénin. 4Département de Biologie Animale, Faculté des Sciences de Dakar, UCAD, BP 5005, Dakar, Sénégal. 5Université de Liège, Gembloux Agro-Bio Tech, Unité de Chimie Générale et Organique, 2 Passage des Déportés -5030 Gembloux, Belgique. 6Université de Liège, Gembloux Agro-Bio Tech, Unité de Chimie Analytique, 2, Passage des Déportés -5030 Gembloux, Belgique.
Email: [email protected]

  •  Accepted: 22 November 2011
  •  Published: 12 December 2011

Abstract

 

This publication describes the efficacy of Boscia senegalensis for the control of the groundnut bruchid,Caryedon serratus (Ol.). Crushed B. senegalensis fresh leaves and fruits were mixed with groundnuts and stored in hermetic containers. A high sensitivity of C. serratus adults at relatively low concentrations of the plant was observed. After 24 h of exposure, fresh crushed leaves mixed with peanuts seeds at 6% (w/w) induced 100% mortality of adults. Same results were obtained with fresh crushed fruits at only 3% (w/w). Only 6% leaves or fruits of B. Senegalensis ensured a complete protection of groundnuts pods and shelled nuts against the weevil C. serratus. The results show that this natural product, which liberate enzymatically Methyl isothiocyanate could potentially protect stored groundnuts at farm level in Africa.

 

Key wordsBoscia senegalensisCaryedon serratus, fumigant effect, stored groundnuts, insecticidal activity.