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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060 EISSN: 1678-8060
Vol. 102, No. 4, 2007, pp. 489-496
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Bioline Code: oc07077
Full paper language: English
Document type: Research Article
Document available free of charge
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Memórias do Instituto Oswaldo Cruz, Vol. 102, No. 4, 2007, pp. 489-496
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Variation in Aedes aegypti (Diptera: Culicidae) container productivity in a slum and a suburban district of Rio de Janeiro during dry and wet seasons
Maciel-de-Freitas, Rafael; Marques, William A; Peres, Roberto C; Cunha, Sérgio P & de Oliveira, Ricardo Lourenço
Abstract
Seasonal variation in container productivity and infestation levels by Aedes aegypti were evaluated in two
areas with distinct levels of urbanization degrees in Rio de Janeiro, a slum and a suburban neighborhood. The
four most productive containers can generate up to 90% of total pupae. Large and open-mouthed containers,
such as water tanks and metal drums, located outdoors were the most productive in both areas, with up to
47.49% of total Ae. aegypti pupae collected in the shaded sites in the suburban area. Water-tanks were identified as
key containers in both areas during both the dry and rainy seasons. Container productivity varied according to
seasons and urbanization degree. However, the mean number of pupae per house was higher in the suburban
area, but not varied between seasons within each area (P > 0.05). High infestation indexes were observed for
both localities, with a house index of 20.5-21.14 in the suburban and of 9.56-11.22 in the urban area. This
report gives potential support to a more focused and cost-effective Ae. aegypti control in Rio de Janeiro.
Keywords
Stegomyia - container productivity - control - dengue - Rio de Janeiro
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