我国滴滴涕、六六六停产以后,急待研制、推广六六六粉剂的取代品种,以供植保上的需要。由于低浓度的粉剂一般毒性低,散布施药工效高,并且使用经济方便,因此目前仍受到群众的欢迎。近两年我们在淮北商品粮基地的凤阳县,用安徽省化工研究所研制的达敌粉、苏敌粉和甲敌粉等几种新的混合粉剂进行防治水稻害虫取得了良好防治效果,现将试验结果整理如下: After DDT and 666 have been discontinued in China, we urgently need to develop and popularize the replacement varieties of BHC powder for the needs of plant protection. As the low concentration of powder is generally low toxicity, spread pesticide application efficiency, and the use of economic convenience, it is still welcomed by the masses. In the past two years, we have achieved good results in prevention and control of rice pests in Fengyang County, a commodity grain base in Huaibei, by using several new mixed powders developed by the Anhui Institute of Chemical Industry, namely, enemy powder, Soviet enemy powder and enemy enemy powder. The test results are organized as follows: