过去用喷粉、喷雾法防治蔗飞虱和绵蚜虫,由于蔗株高大茂密,蔗叶叠置,难以喷得均匀周到,效果不很理想。为改变这种状态,我们试制成功了以敌敌畏为主要杀虫药物的烟剂,经在龙海、南靖、泉州和仙游等县、市示范,深受蔗农欢迎。八、九年来我们一直应用此法防治甘蔗生长中、后期大面积发生的蔗飞虱和绵蚜虫,取得较好的效果。现将方法和结果报告于下。 Past the use of dusting, spraying method to prevent planthoppers and cotton aphids, as cane plants tall and dense, stacked cane leaves, it is difficult to spray even and thoughtful, the effect is not very satisfactory. In order to change this situation, we tried out a successful trial of dichlorvos as the main insecticide, which was welcomed by sugar cane farmers in counties and cities in Longhai, Nanjing, Quanzhou and Xianyou. Eight or nine years, we have been using this method to prevent sugarcane growth in the late large-scale occurrence of planthoppers and cotton aphids, and achieved good results. The methods and results are reported below.