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Competition Between Corcyra Cephalonica (Stainton) and Ephestia Cautella (Walker) in Cocoa Beans

  • J. Allotey
  • R. Kumar
Article

Abstract

Competition between Corcyra cephalonica (Stainton) and Ephestia cautelici (Walker) was studied in broken cocoa beans using the two species alone, introduced one before the other and together. Both species of moths cannot co-exist for an extended period and in competition E. cautella becomes extinct. The results offer an explanation of recent evidence that C. cephalonica is rapidly becoming the most important pest of stored cocoa beans in Ghana today.

Key Words

Corcyra cephalonica Ephestia cautella competition pest resources generation population abundance exploitation 

Résumé

La concurrence entre Corcyra cephalonica (Stainton) et Ephestia cautella (Walker) a été étudié dans les graines de cacao concassées en n’utilisant que les deux espèces, en introduisant un avant l’autre, et en introduisant les deux en même temps. Les deux espèces ne peuvent pas coexister pour une longue période et quand ils sont en concurrence, E. cautella disparaît. Les résultats expliquent la preuve récente que C. cephalonica est en train de devenir l’insecte le plus important, ravageur de graines de cacao emmagasinées au Ghana.

Mots Cléfs

Corcyra cephalonica Ephestia cautella concurrence insecte nuisible ressources génération population abondance exploitation 

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Copyright information

© ICIPE 1985

Authors and Affiliations

  • J. Allotey
    • 1
  • R. Kumar
    • 1
    • 2
  1. 1.Department of ZoologyUniversity of GhanaLegonGhana
  2. 2.Present address: Department of Biological SciencesRivers State University of Science and TechnologyPort HarcourtNigeria

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