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六六六及二二三对蚊幼虫的毒性极高,国内外各地均有扑灭幼虫的用量及效果的报导。我们曾用六六六可湿性粉剂和二二三乳剂在室内进行毒杀试验,所得结果如下。
The six six six and two two three pairs of mosquito larvae are highly toxic, both at home and abroad have been suppressing the amount of larvae and the effect of coverage. We used six six six wettable powder and two hundred twenty-three emulsion poisoning indoors, the results obtained are as follows.