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ACTION OF BENDIOCARB AGAINST TRIATOMINE (HEMIPTERA: REDUVIIDAE) VECTORS OF CHAGAS' DISEASE
Doença de Chagas
Triatoma
Panstrongylus
Infestação
Animais
Chagas disease
Triatoma
Panstrongylus
Infestation
Animals
Afiliación
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, Brasil.
Harvard School of Public Health. Department of Tropical Public Health. Boston, Massachusetts, USA.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, Brasil.
Harvard School of Public Health. Department of Tropical Public Health. Boston, Massachusetts, USA.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, Brasil.
Resumen en ingles
Abstract. Laboratory and field trials were conducted to determine
the action of bendiocarb against triatomine vectors of
Trypanosoma cruzi. Bendiocarb concentrations of 100 mg active
ingredients/m2 killed all exposed triatomines; at lower concentrations
Triatoma infestans was the most susceptible, followed by
Rhodnius prolixus and Panstrongylus megistus. The ovicidal effect
of bendiocarb was slight. Residual activity of bendiocarb applied
to earthen walls ("barro") was depleted by % within 2 months
postspray and virtually nil 4 months after application. Field
trials in an endemic area of Brazil where P. megistus is the sole
domestic triatomine demonstrated that bendiocarb is effective
in reducing triatomine densities. Household infestation rates
were reduced from 18% prespray to 7% postspray. Panstrongylus
megistus density was reduced from 7 per man-h prespray
to 1.5 per man-h postspray. The practical use of bendiocarb in
large-scale campaigns for the control of Chagas' disease will
depend on cost.
Palabras clave en portugues
Trypanosoma cruziDoença de Chagas
Triatoma
Panstrongylus
Infestação
Animais
Palabras clave en ingles
Trypanosoma cruziChagas disease
Triatoma
Panstrongylus
Infestation
Animals
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