为了迅速地发掘土农药品种,肯定及复验已有的土农药对各类农作物病虫害的防治药效,为今年药剂防治工作做好准备,我们从1958年8月下旬开始进行了各类土农药对棉红蜘蛛、菜蚜、斜纹夜蛾、粘虫等害虫及小麦叶锈病、小麦条锈病、马铃薯晚疫病、稻瘟病及甘薯黑斑病等重要病虫的室内药效测定。迄至目前为止,虫害方面共测用了土农药57种;病害方面共测 In order to quickly explore the varieties of agro-chemicals, affirmation and re-inspection of existing pesticides on various types of crop pests and diseases prevention and control efficacy for this year’s preparations for the prevention and control of chemicals, we started from late August 1958 all kinds of pesticides Indoor efficacy test of important pests such as spider mite, aphid, spodoptera, armyworm, wheat leaf rust, wheat stripe rust, potato late blight, rice blast and sweet potato black spot. So far, a total of 57 species of pesticides have been tested in pests and diseases;