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Fipronil Insecticide: Novel Application against Triatomine Insect Vectors of Chagas Disease

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dc.contributor.author Rojas de Arias, Antonieta
dc.contributor.author Fournet, Alain
dc.date.accessioned 2017-01-07T20:53:31Z
dc.date.available 2017-01-07T20:53:31Z
dc.date.issued 2002
dc.identifier.uri http://localhost:8080/xmlui-directorioacademico/handle/123456789/52
dc.description.abstract We investigated the efficacy and the residual effect of fipronil(R) against two species of triatomine bugs, Triatoma infestans and Rhodnius neglectus, in laboratory conditions measuring concentration-response and residual activity on different surfaces (dried mud and lime coated mud). Lethal concentrations (LC50,90) were determined on filter paper. The higher insecticide efficacy against R. neglectus when compared to T. infestans may be partially attributed to the differences in their biological cycles and genetic structures. Comparison with lambdacyhalothrin wettable powder showed that fipronil mortality rates (above 50%) were observed on mud blocks and lime-coated mud blocks up to 3 months when fipronil was sprayed at 100 and 200 mg a.i./m2. Residual effect deeply decayed after 3 months; and at 6 months post treatment mortality was not observed. In contrast, lambdacyhalothrin showed a long lasting residual effect on both surfaces up to 6 months. Also, it should be mentioned that fipronil had a slow, but lethal activity on the triatomine bugs when wettable formulations were used on porous surfaces.
dc.format application/pdf
dc.source Memórias do Instituto Oswaldo Cruz
dc.subject fipronil
dc.subject Triatoma infestans
dc.subject Rhodnius neglectus
dc.subject efficacy
dc.subject residual effect
dc.subject insecticide/surface interaction
dc.subject.mesh Animals
dc.subject.mesh Insect Vectors/drug effects
dc.subject.mesh Insecticides
dc.subject.mesh Lethal Dose 50
dc.subject.mesh Nitriles
dc.subject.mesh Pyrazoles
dc.subject.mesh Pyrethrins
dc.subject.mesh Time Factors
dc.subject.mesh Triatoma/drug effects
dc.title Fipronil Insecticide: Novel Application against Triatomine Insect Vectors of Chagas Disease
dc.type Artículo
dcterms.bibliographicCitation Mem Inst Oswaldo Cruz. 2002 Jun;97(4):535-9.
dc.source.volume 97
dc.source.volume 4
dc.source.pages 535 - 539
dc.contributor.identifier 1261551
dc.directorio.index MEDLINE
dc.directorio.catalogador arv


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