Quimbayo Marcela, Rúa-Uribe Guillermo, Parra-Henao Gabriel, Torres Carolina
Grupo de Entomología Médica, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia.
Red Chagas Colombia, Instituto Nacional de Salud, Bogotá, D.C, Colombia.
Biomedica. 2014 Jul-Sep;34(3):473-82. doi: 10.1590/S0120-41572014000300016.
Dengue fever is a vector-borne viral disease of major public health importance. In the absence of a vaccine, control measures are primarily focused on reducing the mosquito vector. However, these strategies are very expensive, and the use of lethal ovitraps could contribute, in a practical manner, to the design of cost-effective strategies for vector control.
To determine the most efficient type of lethal ovitrap for Ae. aegypti vector control by combining different types of insecticides, oviposition substrates and attractant infusions.
The study was conducted in two stages. In the first, 18 different ovitraps resulting from the combination of insecticides (deltamethrin and permethrin), oviposition substrates (towel, dacron and flannel), and attractant infusion (10 and 20% hay infusion, and dechlorinated water) were evaluated in the laboratory. For this evaluation, ovitraps were placed into a mosquito holding cage, and 100 gravid Ae. aegypti females were released. The top six ovitraps were selected based on the higher number of registered eggs, and the lower hatched eggs percentage. In the second, the top six ovitraps were evaluated in field conditions.
In laboratory conditions, statistical differences were observed between the 18 ovitraps. The ovitraps with deltamethrin were the most efficient showing the best results. In field conditions, the ovitraps with the highest vector reduction were those combining deltamethrin/towel/10% hay infusion.
The ovitrap combining deltamethrin, towel as oviposition substrate, and 10% hay infusion as attractant was the most efficient Ae. aegypti vector control.
登革热是一种具有重大公共卫生意义的媒介传播病毒性疾病。在没有疫苗的情况下，控制措施主要集中在减少蚊虫媒介。然而，这些策略成本非常高，而使用致命诱蚊产卵器可以切实有助于设计具有成本效益的媒介控制策略。
通过组合不同类型的杀虫剂、产卵基质和引诱剂浸液，确定用于埃及伊蚊媒介控制的最有效类型的致命诱蚊产卵器。
该研究分两个阶段进行。第一阶段，在实验室中评估了由杀虫剂（溴氰菊酯和氯菊酯）、产卵基质（毛巾、涤纶和法兰绒）和引诱剂浸液（10%和20%的干草浸液以及去氯水）组合而成的18种不同的诱蚊产卵器。为此评估，将诱蚊产卵器放入蚊虫饲养笼中，并释放100只妊娠的埃及伊蚊雌蚊。根据登记的卵数量较多且孵化卵百分比较低，选出前六种诱蚊产卵器。第二阶段，在野外条件下评估前六种诱蚊产卵器。
在实验室条件下，观察到18种诱蚊产卵器之间存在统计学差异。含有溴氰菊酯的诱蚊产卵器效率最高，效果最佳。在野外条件下，减少媒介效果最高的诱蚊产卵器是组合了溴氰菊酯/毛巾/10%干草浸液的诱蚊产卵器。
组合溴氰菊酯、毛巾作为产卵基质以及10%干草浸液作为引诱剂的诱蚊产卵器是控制埃及伊蚊媒介最有效的。
