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Distribution of the coffee berry borer Hypothenemus hampei Ferr. in Jamaica, and an assessment of the chemical control programme (1979–1982)

Published online by Cambridge University Press:  19 September 2011

Llewellyn F. Rhodes  and
Ajai Mansingh
Llewellyn F. Rhodes
Affiliation:
Department of Zoology, University of the West Indies, Kingston 7, Jamaica
Ajai Mansingh
Affiliation:
Department of Zoology, University of the West Indies, Kingston 7, Jamaica
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Abstract

Between 1979 and 1982, H. hampei spread itself from a small area in the lowlands of central Jamaica, to the entire coffee growing region (alt. 15–1603 m) of the island. The levels of infestations in the 390 farms surveyed ranged from less than 5–100%; in plains it was about 45% but only about 3.4% at altitudes of over 1000 m. On a parish basis the infestation ranged from 2.8 to 19.17% (mean 9.45%) in June 1982, before the spraying with thiodan EC35 began.

In November 1982, 8 weeks after the last spray of the three-spray cycle, the infestation levels ranged between 1 and 20.21% (mean 9.56%). In fact, it had increased from about 6.7% in 1979 to 9.56% in 1982, despite the multi-million dollar spraying programme over 4 years. The shortcomings of the chemical control strategy are discussed and an integrated approach involving chemical and cultural practices is advocated.

No insect parasite or predator of H. hampei were found in Jamaica; the fungus Beauvaria bassiana was however, found to have inflicted 6–40% mortality in the adult borer.

Résumé

Entre 1979 et 1982, le H. hampei s'est disséminé d'une zone réduite des basses terres du centre de la Jamaïque a l'ensemble des régions de culture du café de l'île (altitude: 1500–1600 m). Les taux d'infestation dans les 390 exploitations éstudiées allaient de moins de 5–100%. En plaine, ce pourcentage était d'environ 45%, il n'était qu' autor de 3, 4% au dessus de 1000 m d'altitude. L'infestation par ‘paroisse’ (NDT: division administrative jamaiquaine) se situait entre 2, 8 et 19, 17% (moyenne: 9, 45%) en juin 1982, avant le debut du traitement au thiodan EC 35.

En novembre 1982, 8 semaines après la dernière phase d'un cycle de trois pulvérisations, les niveaux d'infestation éntaient de 1–20, 21% (moyenne: 9, 56%); ceux-ci avaient en fait augmenté de 6, 7% en 1979 à 9, 56% en 1982 en dépit d'un programme de traitement de plus de quatre ans et d'un coôt de plusieurs millions de dollars. Discussion est faite des insuffisances d'une strategie d'enraiement chimique. Une approche intégrée mettant en jeu des applications chimiques et des techniques de culture est recommandée.

Aucun insecte parasite ou predateur du H. hampei n'a été trouvé en Jamaïque; toutefois, le champignon Beuvaria bassina a été identifié comme étant a l'origine d'une mortalité se situant entre 6 et 40% chez l'adulte tétébrant.

Keywords

Coffee berry borerHypothenemus hampeithiodanendosulfanInsecte terebrant de la drupe de cafescolyteHypothenemus hampeithiodanendosulfan
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 7 , Issue 4 , August 1986 , pp. 505 - 510
Copyright
Copyright © ICIPE 1986

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References

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