Cáceres Lorenzo, Rovira José, García Arsenio, Torres Rolando
Instituto Conmemorativo Gorgas de Estudio de la Salud, Panamá, República de Panamá.
Biomedica. 2011 Jul-Sep;31(3):419-27. doi: 10.1590/S0120-41572011000300014.
The susceptibility of Anopheles albimanus to organophosphates, carbamates and pyrethroid insecticides was unknown in the Panama communities of Aguas Claras, Pintupo and Puente Bayano, located in the Amerindian Reservation of Madungandi. This region is considered a malaria transmission area, where An. albimanus is the main vector.
The resistance to organophosphate insecticides, carbamates and pyrethroids was evaluated in field populations of the Anopheles albimanus in Panama.
Progeny of An. albimanus collected in three localities in the indigenous Madugandi region were exposed to bioassays of susceptibility to organophosphate insecticides (fenitrothion, malathion and chlorpyrifos), the carbamate (propoxur) and pyrethroids (deltamethrin, lambdacyhalothrin, cyfluthrin and cypermethrin). The protocols were in accordance with those established for adult mosquitoes by World Health Organization.
The three strains of the An. albimanus were resistant to the pyrethroid insecticides deltamethrin, lambdacyhalothrin, cyfluthrin and cypermethrin. Susceptibility remained for the organophosphate insecticides fenitrothion, malathion, chlorpyrifos, and the carbamate insecticide propoxur.
The results provided important information to the vector control program, contributing to the application of new strategies on the use of insecticides, and thereby lengthening the life of the insecticide in use.
在位于马东甘迪美洲印第安人保留地的巴拿马阿瓜斯克拉拉斯、平图波和普恩特巴亚诺社区，尚不清楚白纹伊蚊对有机磷、氨基甲酸酯和拟除虫菊酯类杀虫剂的敏感性。该地区被认为是疟疾传播区，白纹伊蚊是主要病媒。
评估巴拿马白纹伊蚊野外种群对有机磷杀虫剂、氨基甲酸酯和拟除虫菊酯的抗性。
采集自马杜甘迪土著地区三个地点的白纹伊蚊后代，接受了对有机磷杀虫剂（杀螟硫磷、马拉硫磷和毒死蜱）、氨基甲酸酯（残杀威）和拟除虫菊酯（溴氰菊酯、氯氟氰菊酯、氟氯氰菊酯和氯氰菊酯）的敏感性生物测定。实验方案符合世界卫生组织针对成蚊制定的标准。
白纹伊蚊的三个品系对拟除虫菊酯类杀虫剂溴氰菊酯、氯氟氰菊酯、氟氯氰菊酯和氯氰菊酯具有抗性。对有机磷杀虫剂杀螟硫磷、马拉硫磷、毒死蜱以及氨基甲酸酯类杀虫剂残杀威仍保持敏感性。
这些结果为病媒控制项目提供了重要信息，有助于应用新的杀虫剂使用策略，从而延长在用杀虫剂的使用寿命。
