长期以来,较广泛地使用六六六、二二三烟熏或喷洒,作为防治成蚊及幼虫的主要方法。有效地控制了由蚊媒引起的传染病。但也使一些地区的蚊虫发生了不同程度的抗药性,群众反映一些药物效果不如以前。为了对今后防病灭蚊工作提供科学依据。我们于77年6～7月份,在汉川县城郊区沟渠、浅水等场所,就致泛库蚊幼虫对六六六、二二三等六种杀虫剂做了毒效测定,以期了解致乏库蚊幼虫对老杀虫剂及近期使用的杀虫剂的敏感程度。结果如下。 For a long time, it has been widely used as a main method for controlling adult mosquitoes and larvae. Effective control of infectious diseases caused by mosquito vectors. However, mosquitoes in some areas have also caused some degree of resistance to mosquitoes, and the masses have shown that some drugs are less effective than before. In order to provide a scientific basis for future anti-mosquito work. In June-July of 1977, we measured the toxic effects of 6 insecticides, such as 666 and 223, of Culex pipiens pallens in the ditch and shallow water of suburbs of Hanchuan County in order to understand the lack of Culex pipiens larvae insecticides on the old and the recent use of insecticides sensitivity. The result is as follows.