农药喷粉法不应被淘汰六、七十年代，农村生产队普遍有手动喷粉器，用于喷粉的农药到处可见。自１９８５年农村实行生产责任制以来，农作物病虫害的防治工作由统一走向分散，自此一些地区广大农村很少见使用手动喷粉器喷药。喷粉作为一项传统的施药技术有省工、方便、成本... Pesticide duster method should not be eliminated Sixties and seventies, the rural production teams generally have manual dusters, pesticides for dusting can be seen everywhere. Since the implementation of the system of production responsibility in rural areas in 1985, prevention and control of crop pests and diseases have shifted from unity to dispersion. Since then, manual duster sprays have rarely been used in rural areas in some areas. Dusting as a traditional application of pesticide technology has labor, convenience, cost ...