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我省历年普遍使用2.5％溴氰菊酯灭蚊,防疟效果显著。为节省费用,1990年我们在红星乡用英国生产的5％氯氰菊酯乳剂,喷洒蚊帐10779顶,喷帐率92.71％,受药量10mg/m~2。以未灭蚊的建设乡作对照,效果如下。蚊虫密度灭蚊前观察3次,计均值,灭蚊后5-10月,每月观察1次,每次于清晨捕捉40顶蚊帐内的全部蚊虫。用相关密度指数计算下降率。嗜人按蚊、中华按蚊和致倦库蚊的下降率分别为91.1％,100％和85.9％,每次捕获的骚扰阿蚊数量较少,下降率为-81.0％。
2.5% deltamethrin mosquito was commonly used in our province in the past years, and the anti-malaria effect was remarkable. To save costs, in 1990 we produced 5% cypermethrin in Hongxing Township with 10,779 mosquito nets, with a rate of 92.71%. The dosage was 10mg / m ~ 2. In order to control the construction of unmanaged mosquitoes, the effect is as follows. Mosquito density observed 3 times before mosquito control, the mean, 5 to 10 months after mosquito control, once a month, each capturing 40 mosquito nets in the early morning. Calculate the rate of decline using the relevant density index. Anopheles anthropophagus, Anopheles sinensis and Culex quinquefasciatus rates of decline were 91.1%, 100% and 85.9%, respectively, captured a small number of mosquito Harassment, the rate of decline was -81.0%.