Diaz-Garcia Marta I, Ocasio-Reed Victoria, Felix Gilberto, Paz-Bailey Gabriela, Ng Lee Ching, Barrera Roberto
Entomology and Ecology Team, Dengue Branch, Division of Vector-Borne Diseases, CDC, 1324 Calle Canada, San Juan, Puerto Rico 00920.
Environmental Health Institute, National Environment Agency, Singapore.
J Am Mosq Control Assoc. 2024 Dec 23. doi: 10.2987/24-7195.
We compared the number of Aedes aegypti females per trap and the number of detections of this mosquito species per week during 8 wk in 3 types of autocidal gravid traps, the Centers for Disease Control and Prevention (CDC) Autocidal Gravid Ovitrap (AGO), Biogents Gravid Aedes Trap (GAT), and Singapore Gravitrap (SGT), in central Puerto Rico. These traps use the same principles for attracting gravid Ae. aegypti females as traditional ovitraps, such as dark colors, standing water, and decomposing plant materials. The traps differ in size, AGO being the biggest and SGT the smallest. Average captures of female Ae. aegypti per trap per week were 11.1, 7.2, and 1.7 in AGO, GAT, and SGT traps, respectively, a pattern consistent with the sizes of the traps. These results indicated that GAT traps and SGT traps captured 35.5% and 84.7% fewer females of Ae. aegypti, respectively, than AGO traps. Although Ae. aegypti was present in all 20 sites during the 8 wk of observations, AGO, GAT, and SGT traps did not catch specimens in 1, 9, and 58 out of 160 observations per trap type (trap-wk), respectively. Trap failures were 1, 6, and 1 for the AGO, GAT, and SGT traps, respectively. Despite the absence of females of Ae. aegypti at some sites and weeks in each of the traps, all 3 traps were able to detect the presence of this mosquito at each of the 20 sites during the 8 wk of observations and could be used for Ae. aegypti surveillance.
我们比较了在波多黎各中部，三种类型的自灭式孕蚊诱捕器（疾病控制与预防中心（CDC）的自灭式孕蚊产卵诱捕器（AGO）、Biogents孕蚊诱捕器（GAT）和新加坡孕蚊诱捕器（SGT））在8周内每个诱捕器捕获的埃及伊蚊雌蚊数量以及每周该蚊种的检测次数。这些诱捕器吸引孕性埃及伊蚊雌蚊的原理与传统产卵诱捕器相同，比如深色、积水和腐烂的植物材料。诱捕器在尺寸上有所不同，AGO最大，SGT最小。AGO、GAT和SGT诱捕器每个诱捕器每周捕获的埃及伊蚊雌蚊平均数量分别为11.1只、7.2只和1.7只，这一模式与诱捕器的尺寸一致。这些结果表明，GAT诱捕器和SGT诱捕器捕获的埃及伊蚊雌蚊数量分别比AGO诱捕器少35.5%和84.7%。尽管在8周的观察期内，所有20个地点都有埃及伊蚊存在，但AGO、GAT和SGT诱捕器在每种诱捕器类型的160次诱捕观察（诱捕器 - 周）中，分别有1次、9次和58次未捕获到标本。AGO、GAT和SGT诱捕器的诱捕失败次数分别为1次、6次和1次。尽管在每个诱捕器的某些地点和某些周没有埃及伊蚊雌蚊，但在8周的观察期内，所有这三种诱捕器都能够在20个地点中的每个地点检测到这种蚊子的存在，并且可用于埃及伊蚊监测。
