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Monitoring of endosulfan and lindane resistance in the coffee berry borer Hypothenemus hampei (Coleoptera: Scolytidae) in New Caledonia

Published online by Cambridge University Press:  10 July 2009

L.O. Brun
Affiliation:
Institut Français de Recherche Scientifique pour le Développement en Coopération (ORSTOM) Nouméa, New Caledonia
C. Marcillaud
Affiliation:
Institut Français de Recherche Scientifique pour le Développement en Coopération (ORSTOM) Nouméa, New Caledonia
V. Gaudichon
Affiliation:
Institut Français de Recherche Scientifique pour le Développement en Coopération (ORSTOM) Nouméa, New Caledonia
D.M. Suckling
Affiliation:
DSIR Plant Protection, Department of Scientific and Industrial Research, Christchurch, New Zealand

Abstract

Endosulfan resistance in the coffee berry borer Hypothenemus hampei (Ferrari) was discovered in New Caledonia after six years of lindane and 12 years of endosulfan biannual applications. The direct spray technique was used to study cross resistance with lindane and to monitor resistance to both pesticides in 15 regions of New Caledonia. An easier monitoring technique was developed for early detection by field laboratories. Results from this simple method, using twice the LC99 of endosulfan to susceptibles (400 ppm) showed a comparable distribution of resistance to the direct spray method in five regions where resistance was detected. The percentage of surveyed fields containing resistant insects in these areas was: Poindimié, 100%, Ponérihouen, 97%; Touho, 63%; Houailou, 10%; Hienghène, 6%. Resistant insects were significantly more frequent in the new sunny fields than in older shady plantations (P<0.05), and fields with endosulfan used in the preceding year (P<0.001). The possible reasons for the observed distribution of resistance are discussed.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1990

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References

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