敌敌畏是一种较新型的有机磷杀虫剂,对人畜毒性较低,而对昆虫毒性较强,常用于喷洒、诱饵、挂绳、熏蒸等方法进行灭蚊蝇,效果比较显著。我们于1964年4月份在新会县会城镇,进行一次大面积熏蒸灭蚊,效果比较满意。现将方法与效果报告如下:试验观察在进行大面积灭蚊前,先选择一间体积为53.59立方米(4.4×2.9×4.2米)的房间进行试验观察,方法是:选择实验室饲养的致倦库蚊和小白鼠放在三个体积为22×27×28厘米的铁纱笼中,再将这三个铁纱笼分别放在地面、离 Dichlorvos is a relatively new type of organophosphate insecticides, toxicity to humans and animals is low, and strong toxicity to insects, commonly used in spraying, bait, lanyard, fumigation and other methods to eliminate mosquitoes and flies, the effect is more significant. In April 1964, we conducted a large-scale fumigation and mosquito killing in the town of Xinhui County, with satisfactory results. The method and effect are reported as follows: Experimental observation Before a large area mosquito is killed, a room with a volume of 53.59 cubic meters (4.4 × 2.9 × 4.2 meters) is selected for experimental observation by selecting a laboratory-induced Culex pipiens pallens and mice were placed in three iron silages with a size of 22 × 27 × 28 cm and placed on the ground separately from the ground