Seasonal oviposition activity of Aedes aegypti (Diptera: Culicidae) in San Miguel de Tucumán, northwestern Argentina
Keywords:
emerging tropical disease, arbovirus, ovitrap, Aedes (Stegomyia) aegyptiAbstract
Aedes aegypti (L.) (Diptera: Culicidae) has recolonized many areas of Argentina. The purpose of this study was to determine the seasonal patterns of oviposition activity for this mosquito vector and the association between this factor and climate in an urban area (Tucumán Province) with a history of dengue transmission. We collected 9,476 eggs by ovitraps in San Miguel de Tucumán with the highest abundance of eggs observed in the 2 neighborhoods Ciudadela and El Bosque. Peak oviposition activity by Ae. aegypti occurred in the summer. The number of eggs laid was positively correlated with temperature and precipitation levels.
Sumario
Aedes aegypti (L.) (Diptera: Culicidae) ha recolonizando diversas áreas de la Argentina. El objetivo de este estudio fue determinar los patrones estacionales de la actividad de oviposición para este mosquito vector, y la asociación entre este factor y el clima en un área urbana (Provincia de Tucumán) con antecedentes de transmisión de dengue. 9.476 huevos fueron recolectados con ovitrampas en San Miguel de Tucumán, con la mayor abundancia de huevos en los barrios Ciudadela y el Bosque. Picos de actividad de oviposición de Ae. aegypti ocurrieron en el verano. El número de huevos puestos fue correlacionado positivamente con la temperatura y los niveles de precipitación.
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