1985年南京农机所等单位根据我国部份垦区山高坡陡的特点,参考国外引进样机,研制出背负式3YD—8型烟雾机,用南开大学元素所提供的油基粉锈宁烟雾剂,在云南、海南垦区作防治橡胶树白粉病试验,结果初步看出:烟雾技术防效好,劳动强度低,适宜山地使用。1986年为进一步应用这一烟雾技术,云南省农垦总局 In 1985, Nanjing Agricultural Machinery and other units according to the steep characteristics of some highland steep slopes of our country, with reference to the introduction of prototypes abroad, developed a knapsack type 3YD-8 smoke machine with Nankai elements provided by the oil-based triadimefon aerosol in Yunnan, Hainan Reclamation rubber tree powdery mildew prevention and control of the experiment, the results initially showed that: smoke technology is good control effect, low labor intensity, suitable for mountain use. In 1986 to further the application of this smoke technology, Yunnan Land Reclamation Bureau