Field comparison of oviposition substrates used in ovitraps for Aedes aegypti surveillance in Salta, Argentina

MARIANA CHANAMPA, JOSÉ F. GIL, JUAN P. APARICIO, PAOLA CASTILLO, CAROLINA MANGUDO, GRISELDA N. COPA, AND RAQUEL M. GLEISER; JUAN PABLO APARICIO

JOURNAL OF APPLIED ENTOMOLOGY

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2018

0931-2048

Aedes aegypti L. (Diptera: Culicidae) is a mosquito broadly found in tropical and temperate areas of the world. It is the main vector of dengue, chikungunya, zika, and yellow fever (urban cycle), among other viruses Aedes aegypti immature develop in water holding containers, and frequently uses artificial containers in urban settings as larval habitat. Ovitraps are artificial oviposition sites, a tool developed for mosquito population surveillance and to assess effectiveness of control measures. The preference for different oviposition substrate materials was assessed in the field, in two localities of Salta province, northern Argentina, where dengue outbreaks are frequent. The proportion number of positive traps did not differ between localities. However, results indicate that females differ in their substrate preference, since a higher proportion of ovitraps with cotton fabric substrates were positive compared to other ovitraps. Also, higher numbers of eggs were laid in cotton fabric and velour paper, which were better than wood paddle and blotting paper if the aim is to maximize the numbers of eggs collected. They also evidenced that substrate preference for oviposition did not differ between geographic regions.