Miller Nicholas, Mettelman Robert C, Baker Susan C, Harbison Justin E
1 Department of Microbiology and Immunology, Loyola University Medical Center, 2160 S First Avenue, Maywood, IL 60153.
J Am Mosq Control Assoc. 2015 Jun;31(2):196-9. doi: 10.2987/14-6470R.
Gravid traps are commonly used by mosquito control agencies to collect local populations of Culex pipiens, which are then tested for the presence of West Nile virus. Culex pipiens adults disperse a relatively short distance (~2.5 km) from their breeding site, so it can be challenging to position a sufficient number of gravid traps to accurately monitor these mosquitoes in large urban areas. As placement of these traps is often limited to locations out of public?view, the potential for placing these traps belowground in commonly found storm-water catch basins was investigated. We compared the numbers of mosquitoes isolated in the Centers for Disease Control and Prevention (CDC) gravid traps placed aboveground with various types of CDC gravid traps placed in nearby catch basins. We found that the gravid traps placed in catch basins collected significantly fewer Culex pipiens females as compared to the aboveground traps. However, the 2 types of catch basin traps continued to function and collect mosquitoes despite heavy rainfall and runoff, demonstrating their utility for sample collection in an urban setting. The potential advantages and disadvantages of using catch basins for the placement of CDC gravid traps are discussed.
蚊虫控制机构通常使用诱蚊产卵器来收集当地的致倦库蚊种群，然后对其进行西尼罗河病毒检测。致倦库蚊成虫从其繁殖地扩散的距离相对较短（约2.5公里），因此在大城市地区放置足够数量的诱蚊产卵器以准确监测这些蚊子具有挑战性。由于这些诱蚊产卵器的放置地点通常限于公众视线之外的地方，因此研究了将这些诱蚊产卵器放置在常见的雨水集水池地下的可能性。我们比较了放置在地面上的疾病控制与预防中心（CDC）诱蚊产卵器与放置在附近集水池中的各种类型的CDC诱蚊产卵器所捕获的蚊子数量。我们发现，与地面上的诱蚊产卵器相比，放置在集水池中的诱蚊产卵器捕获的致倦库蚊雌蚊数量明显更少。然而，尽管有大量降雨和径流，这两种类型的集水池诱蚊产卵器仍能继续发挥作用并捕获蚊子，证明了它们在城市环境中用于样本采集的实用性。本文讨论了使用集水池放置CDC诱蚊产卵器的潜在优缺点。
