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我县丝虫病流行比较严重,山区少数民族公社丝虫感染率约为30%,个别自然村高达70%。丝虫病传播媒介主要是致乏库蚊。我县农村沟坑积水极少,致乏库蚊主要孳生在人房内或人房附近的中小容器积水中。为了摸案经验,先选择比较典型的孳生场所——储存猪食的破缸,投入有机磷腊九,作初步试验观察。投药前,此破缸常有蚊幼虫,投药后幼虫开始消失,维持七十天未出现幼虫,后因腊丸被小孩弄坏,未能继续观察持效。在投药开始的10多天中,每天还可能在水面检到死亡的雌蚊,推断在水中含药较高时,对产卵的雌蚊也能毒杀。根据上述经验,在抱由公社佳西大队居民点附近致乏库蚊孳生场所,均投放有机磷腊丸,经过几个月的观察,当地致乏库蚊的幼虫和成虫均显著减少。
The prevalence of filariasis in our county is more serious. The prevalence of filarial infection in the commune of mountainous ethnic groups is about 30% and that of individual natural villages is as high as 70%. Filariasis vectors are mainly caused by Culex. In our county, there is very little water in the ditches in the rural ditches, causing Culex pipiens to breed mainly in small or medium-sized containers of stagnant water in or near human houses. In order to solve the case experience, first select the more typical breeding place - the storage of pig food broken cylinder, put organic phosphorus wax nine, for preliminary experimental observation. Before administration, this broken cylinder often mosquito larvae, after administration of the larvae began to disappear, maintaining larvae for seventy days did not appear, because after the pill was damaged by children, failed to continue to observe the effect. In the first 10 days of administration, dead female mosquitoes may also be detected on the water every day, and it can be concluded that when the drug in water is high, the female mosquito that spawns can be poisoned. According to the above experience, organophosphorus wax pellets were put into place near the settlements where residents of Jiaxi Brigade of the commune lived. However, larvae and adults of Culex pipiens pallens were significantly reduced after several months of observation.