Variation of the oviposition preferences of Aedes aegypti in function of substratum and humidity

  • Madeira N
  • Macharelli C
  • Carvalho L
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Two Aedes aegypti (L.) populations were studied in the laboratory regarding the preference for three types of breeding sites, i.e., flasks containing only water, flasks with a plant and flasks with a stick. Each of these breeding units was placed in one cage and the choice of the oviposition sites was determined for individual females and three females per experimental unit at two humidity levels. Preference for ovipositing on the water surface was observed and varied according to experimental unit and humidity. Mean hatching of eggs in water surface was 46.6%. Experiments with three females showed a more marked difference than when only one female was used. Inter and intrapopulation variability regarding oviposition sites was observed. The discrimination between the different oviposition substrates, hatching in water surface and its implication for mosquito control are discussed

Author-supplied keywords

  • Aedes
  • Humidity
  • Oviposition
  • Oviposition behaviour

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  • N. G. Madeira

  • C. A. Macharelli

  • L. R. Carvalho

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