LABORATORY EVALUATION OF THE DEVELOPMENT OF Aedes aegypti IN TWO SEASONS: INFLUENCE OF DIFFERENT PLACES AND DIFFERENT DENSITIES

Authors

  • Tatiana Forte Lopes Secretaria de Estado da Saúde São Paulo; Superintendência de Controle de Endemias (SUCEN)
  • Marcia Moreira Holcman Secretaria de Estado da Saúde São Paulo; Superintendência de Controle de Endemias (SUCEN)
  • Gerson Laurindo Barbosa Secretaria de Estado da Saúde São Paulo; Superintendência de Controle de Endemias (SUCEN)
  • Maria de Fatima Domingos Secretaria de Estado da Saúde São Paulo; Superintendência de Controle de Endemias (SUCEN)
  • Rosa Maria Oliveira Veiga Barreiros Secretaria de Estado da Saúde São Paulo; Superintendência de Controle de Endemias (SUCEN)

Abstract

Aedes aegypti is an important vector in Brazil being the main vector of the dengue-fever. This paper employs survival curves to describe the time in days from larvae to adult forms of Aedes aegypti raised, individually and collectively, and compares it during winter and spring when positioned inside and outside a laboratory. The study was conducted in São Vicente, a coastal city in Southeastern Brazil. The lowest water temperature in winter and in spring was 20 °C and the highest was 26 °C in spring. Higher and more stable temperatures were measured in the intra compared to the peri in both seasons. Consequently, larvae positioned in the intra resulted in the lowest median time to develop in the individual and collective experiment (nine and ten days, respectively). At least 25% of the larvae positioned in the intra in the individual experiment in the spring took only seven days to reach adulthood. Sex ratios and the median time development by sex did not show significant differences. These results indicate that efforts to control Aedes aegypti must be continuous and directed mainly to prevent the intra-domiciliary sites that can be infested in a week in order to reduce the human-vector contact.

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Published

2014-09-01

Issue

Section

Entomolology

How to Cite

LABORATORY EVALUATION OF THE DEVELOPMENT OF Aedes aegypti IN TWO SEASONS: INFLUENCE OF DIFFERENT PLACES AND DIFFERENT DENSITIES . (2014). Revista Do Instituto De Medicina Tropical De São Paulo, 56(5), 369-374. https://revistas.usp.br/rimtsp/article/view/87529