22种配方驱避剂驱蚊效果观察

目的观察不同配方的驱避剂驱蚊效果,筛选效果较好的配方。方法采用实验室（GB/17322.10-1998）和现场的药效测试方法进行效果测试。结果 20种配方的驱避剂中有10种对实验室饲养的白纹伊蚊有效保护率〉80%,平均驱避效果在10h以上;2种现场试验使用配方3组,试验的平均有效保护时间分别为4.8、4.5、4.8h。结论现场试验效果较实验室效果差,可能由于夏季出汗较多、活动量大,致使驱避剂被擦失或被皮肤吸收等造成。由于实验室试验与现场试验使用的不是同一种配方,还需要进一步试验证实各种驱避剂的驱避效果。

Effect evaluation of 22 mosquito repellents of different formulas

Objective The effects of the mosquito repellents of different formulas were evaluated to identify the optimum formula.Methods Both the laboratory（GB/17322.10-1998） and on-site repellent effects of the agents were measured.Results Among the twenty tested formulas,ten demonstrated the effective protection rates of greater than 80% against laboratory-reared Aedes albopictus with an average repellent duration of above 10 h.Three groups of different formulas were tested in two separate on-site tests,resulting in the average effective protection durations of 4.8,4.5 and 4.8 h,respectively.Conclusion The on-site test results,which were not as good as the laboratory ones,might be due to loss of repellents through rubbing or skin absorption given heavier sweat and more intense activities in summer.Since different formulas were used in the laboratory and on-site tests,further tests are required to confirm the repellent effects of the formulas under the same circumstances.