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Estimation of production losses caused by the coffee berry borer (Coleoptera: Scolytidae) and calculation of an economic damage threshold in Togolese coffee plots

Estimation of production losses caused by the coffee berry borer (Coleoptera: Scolytidae) and calculation of an economic damage threshold in Togolese coffee plots. Wegbe Komlan, Cilas Christian, Decazy Bernard, Alauzet Claude, Dufour Bernard Pierre. 2003. Journal of Economic Entomology, 96 (5) : 1473-1478.
http://dx.doi.org/10.1603/0022-0493-96.5.1473

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Autre titre : Estimation des pertes de production causées par le scolyte des baies du caféier (Coleoptera : Scolytidae) et calcul d'un seuil économique de dégât dans des parcelles de caféiers au Togo

Article de revue ; Article de revue à facteur d'impact

Résumé : The coffee berry borer, #Hypothenemus hampei# (Ferrari) (Coleoptera: Scolytidae), which exists in all coffee producing zones, is a major pest. The seriousness of this scolytid was assessed in Togolese plots spread over five agroclimatic zones, by determining the attack rate from a sample of coffee trees. The work was carried out over 2 yr and revealed that weight losses were proportional to the attack rates. The average infestation rates were 5.64% in the first year and 6.36% in the second year, while total production losses amounted to 2.60% and 3.18%, respectively, for the same periods. Generally speaking, attack rates in the plots were low and varied considerably within a given zone. Plantations located on plateau were more severely attacked than those in the plains. A relationship was established between total losses and the cost of insecticide treatment; this relationship was used to calculate an economic damage threshold beyond which control proves to be cost effective. (Résumé d'auteur)

Mots-clés Agrovoc : Coffea canephora, Hypothenemus hampei, Dégât, Niveau de préjudice économique, Seuil économique, Plateau, Plaine, Lutte anti-insecte, Analyse coût avantage, Perte de récolte

Mots-clés géographiques Agrovoc : Togo

Classification Agris : H10 - Ravageurs des plantes
U10 - Méthodes mathématiques et statistiques
F01 - Culture des plantes

Document en bibliothèque : http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=179430

Localisation du document : CD_BR12017 [(Bibliothèque de Lavalette)] ; CD_BR12016 [(Bibliothèque de Lavalette)] ; CD_PE747 [(Bibliothèque de Lavalette)] ; RN_PERN35 [(Centre de Ressources 3P (La Réunion))]

Auteurs et affiliations

  • Wegbe Komlan, CRA-F (TGO)
  • Cilas Christian, CIRAD-CP-CACAO (FRA)
  • Decazy Bernard, CIRAD-CP-CACAO (FRA)
  • Alauzet Claude, Université Toulouse III Paul Sabatier (FRA)
  • Dufour Bernard Pierre, CIRAD-CP-CAFE (SLV)

Source : Cirad - Agritrop

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