Immature Aedes mosquitoes colonize Culex quinquefasciatus breeding sites in neighborhoods in the municipality of Olinda, State of Pernambuco

Introduction The present study shows the colonization of Aedes mosquitoes in breeding sites specific for Culex quinquefasciatus in neighborhoods in the municipality of Olinda. Methods Samples were collected between May 2011 and June 2012 from breeding sites positive for Cx. quinquefasciatus by using a ladle and manual suction pump. Results Aedes aegypti (0.12%), Aedes albopictus (0.03%), and Cx. quinquefasciatus (99.8%) were found across the breeding sites. Conclusions The presence of Aedes ssp. in several Cx. quinquefasciatus breeding sites with a heavy load of organic material demonstrates the need to review the concepts and methods used for treatment, as the use of specific larvicide for breeding sites of Culex.

引言 本研究调查了伊蚊属（Aedes）蚊虫在奥林达市（Olinda）辖区内针对致倦库蚊（Culex quinquefasciatus）的专属滋生地中的定殖情况。方法 本研究于2011年5月至2012年6月期间，利用长柄勺与手动抽吸泵，从致倦库蚊检测呈阳性的滋生地采集样本。结果 本次采样的滋生地中共检出埃及伊蚊（Aedes aegypti，占比0.12%）、白纹伊蚊（Aedes albopictus，占比0.03%）以及致倦库蚊（Cx. quinquefasciatus，占比99.8%）。结论 在多处有机质负载量较高的致倦库蚊滋生地中均检出伊蚊属（Aedes ssp.）物种，这表明当前针对库蚊属滋生地使用专用杀幼虫剂的防治理念与操作方法亟需重新审视与完善。