烟草无土育苗是在温室或塑料大棚内进行的一种育苗技术，有漂浮育苗和洒水育苗两种方式。由于整个育苗过程是在相对稳定的温湿条件下进行，病虫害发生特点与常规育苗有些不同，病虫害防治手段差异就更大。笔者经２年跟踪观察这种特殊环境条件下烟草育苗病虫害的发生情况，... Tobacco soilless seedlings in the greenhouse or plastic greenhouse carried a seedling technology, there are floating nursery and sprinkling nursery two ways. Because the entire nursery process is carried out under relatively stable temperature and humidity conditions, the pest and disease occurrence characteristics are somewhat different from those of conventional nursery, and the differences in pest and disease control measures are even greater. After 2 years of follow-up observation of this special environmental conditions, tobacco seedling pests and diseases under the situation, ...