Autor(es): de Ázara Tatiana Mingote Ferreira,Degener Carolin Marlen,Roque Rosemary Aparecida,Ohly Jörg Johannes,Geier Martin,Eiras Álvaro Eduardo

Resumo: Carbon dioxide (CO2) is an important component for activating and attracting host-seeking mosquitoes. The BG-Sentinel® trap is a well-established monitoring tool for capturing Culicidae, but CO2 role for the trap effectiveness has not been evaluated in highly urbanised areas. The objective was to evaluate the effectiveness of BG-Sentinel traps baited with and without CO2 for capturing urban mosquitoes. Fifteen areas were selected within the city of Manaus, Brazil, where four BG-Sentinels were operated for 24 h, two of them with CO2 and two without CO2. Captured Aedes aegypti females were dissected for the determination of their parity status. A significantly higher proportion of traps (from 32-79%) were positive for female Ae. aegypti when using the BG-Sentinel with CO2 (?2 = 11.0271, p ? 0.001). Catches of female Culex spp were six times higher in CO2 traps (Mann-Whitney U test = 190.5; p = 0.001). Parity rates were similar for both traps. This study showed that CO2 has primarily an enhancing effect on the efficacy of BG-Sentinel for capturing Culex spp in Manaus. For Ae. aegypti, the positivity rate of the trap was increased, when CO2 was added.

Palavras-Chave: Adult mosquitoes; Dry ice; Urban area

Imprenta: Memo?rias do Instituto Oswaldo Cruz, v. 108, n. 2, p. 229-232, 2013

Identificador do objeto digital: 10.1590/0074-0276108022013016

Descritores: Aedes aegypti - Public health

Data de publicação: 2013

INDICADORES

ACESSO