Krockel Ulla, Rose Andreas, Eiras Alvaro E, Geier Martin
Institut fur Zoologie, University of Regensburg, Universitatstrasse 31, 93040 Regensburg, Germany.
J Am Mosq Control Assoc. 2006 Jun;22(2):229-38. doi: 10.2987/8756-971X(2006)22[229:NTFSOA]2.0.CO;2.
A novel mosquito trapping system, the BG-Sentinel trap, was evaluated as a monitoring tool for adult Aedes aegypti in field tests in the city of Belo Horizonte, Brazil. Human landing/biting collections, a gas-powered CO2 trap, and a Fay-Prince trap with only visual cues serving as references to evaluate the efficacy of the new trap. The BG-Sentinel is a simple suction trap that uses upward-directed air currents as well as visual cues to attract mosquitoes. The trap was tested with a new dispenser system (BG-Lure) that releases artificial human skin odors and needs no CO2. In comparison with the two other traps, the BG-Sentinel caught significantly more Ae. aegypti. Although human landing rates were the highest, there was no significant difference between human landing rates and the capture rates of the BG-Sentinel trap. The finding indicates that the trap can be considered as an acceptable alternative to human landing/biting collections in the surveillance of adult host-seeking dengue vectors. The addition of BG-Lure to the gas-powered CO2 trap greatly increased its efficacy. This combination, however, was not significantly more effective than the BG-Sentinel without CO2. In a 6-month comparison between the BG-Sentinel and a sticky ovitrap for gravid females, the BG-Sentinel proved to be a far more efficient and sensitive tool to measure the density of Ae. aegypti populations.
一种新型的蚊虫诱捕系统——BG-Sentinel诱捕器，在巴西贝洛奥里藏特市的现场测试中被评估为监测成年埃及伊蚊的工具。以人诱捕/叮咬采集、燃气驱动的二氧化碳诱捕器以及仅以视觉线索为参照的Fay-Prince诱捕器来评估这种新型诱捕器的效果。BG-Sentinel诱捕器是一种简单的抽吸式诱捕器，它利用向上的气流以及视觉线索来吸引蚊子。该诱捕器通过一种新的分发系统（BG-Lure）进行测试，该系统能释放人造人皮肤气味且无需二氧化碳。与其他两种诱捕器相比，BG-Sentinel诱捕器捕获的埃及伊蚊显著更多。尽管人诱捕率最高，但人诱捕率与BG-Sentinel诱捕器的捕获率之间没有显著差异。这一发现表明，在监测成年登革热宿主寻找型病媒时，该诱捕器可被视为替代人诱捕/叮咬采集的可接受方法。在燃气驱动的二氧化碳诱捕器中添加BG-Lure可大大提高其效果。然而，这种组合并不比不使用二氧化碳的BG-Sentinel诱捕器显著更有效。在对BG-Sentinel诱捕器和用于捕获孕卵雌蚊的粘性产卵诱捕器进行的为期6个月的比较中，BG-Sentinel诱捕器被证明是一种测量埃及伊蚊种群密度的更高效、更灵敏的工具。
