论文部分内容阅读
目的总结分析2006—2015年山东省南水北调东平湖沿线中华按蚊的抗药性,为当地疟疾媒介控制提供参考。方法采用WHO成蚊接触筒法测试该地区中华按蚊抗性情况,对其进行抗药性评价。结果 2006—2015年期间,DDT处理东平湖沿线中华按蚊的死亡率从55.45%下降到35.09%,为抗性水平。中华按蚊经溴氰菊酯和氟氯氰菊酯处理后分别从2006年的初抗水平(死亡率83.02%和80.36%)升至抗性水平(2013年的47.86%和2012年的33.33%),此后抗性水平又有所下降,但2007—2015年均为抗性群体(R)。马拉硫磷处理后的中华按蚊死亡率基本呈现上升趋势,2006—2011年,经马拉硫磷处理后中华按蚊被评价为抗性群体(R),2012年后稳定在初抗水平。结论该地区中华按蚊对菊酯类杀虫剂已产生明显抗药性,局部地区可使用马拉硫磷快速杀灭蚊虫成虫。在今后的蚊媒治理工作中应科学合理使用化学杀虫剂,采取综合防治措施,防止或延缓抗性的产生和发展。
Objective To summarize and analyze the resistance of Anopheles sinensis from Dongping Lake, Shandong Province, South-to-North Water Diversion Project from 2006 to 2015, and provide a reference for the local malaria vector control. Methods The resistance of Anopheles sinensis in this area was tested by WHO contact mosquito contact tube method, and its resistance was evaluated. Results During 2006-2015, the mortality rate of DDT from Anopheles sinensis along Dongping Lake dropped from 55.45% to 35.09%, which was the level of resistance. After being treated with deltamethrin and cyfluthrin, the mosquitoes of Anopheles sinensis went up to the level of resistance (83.8% and 80.36% respectively) in 2006 (47.86% in 2013 and 33.33% in 2012) The level of resistance declined again, but all were resistant (2007-2015). The death rate of Anopheles sinensis after malathion basically showed an upward trend. Anopheles sinensis was evaluated as a resistant population (R) after malathion treatment from 2006 to 2011, and stabilized at the primary antibody level after 2012 . Conclusion Anopheles sinensis in the area has obvious resistance to pyrethroid insecticides, and mosquitoes can be quickly killed by malathion in some areas. In the future mosquito control work should be scientific and rational use of chemical pesticides, to take comprehensive prevention and control measures to prevent or delay the emergence and development of resistance.