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控制蚊虫孳生场所,杀灭蚊幼,是灭蚊和预防蚊媒传染病的最根本办法之一。我部驻区坏境有大片水田(约一千亩),是蚊虫大量孳生的场所,我们在1957年曾试用油浸六六六石膏砖杀灭其中的蚊幼,现将试用结果报告如下。一、试验场所选择在本分队附近选择了具有代表性的稻田4984平方米(约7.5市亩)作为试验田,及坏境相同的稻田5686平方米(约8.6亩)作为对照;并选择了有代表性的池塘2个,面积共670平方米,作为
It is one of the most fundamental ways to control mosquito and prevent mosquito-borne diseases by controlling mosquito breeding sites and killing mosquito. There are a large number of paddy fields (about one-thousand mu) in the border area of my department. It is a place where mosquitoes breed in large numbers. In 1957, we tested the immersion of 666 gypsum bricks to kill the mosquito, and the results of the trial are reported as follows. I. Test Site Selection A representative area of 4,984 square meters (about 7.5 city acres) of paddy fields was selected as the experimental field near the Detachment and 5,686 square meters (8.6 square meters) of paddy fields with the same bad habitat as the control. A representative 2 ponds with a total area of 670 square meters, as