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我省老烟区——宝鸡市烟区,又是小麦主产区,历来种植晚烟。1968年以后,烟草花叶病为害严重,据调查,重病株达到50%以上,造成烤烟低产劣质,影响到当地领导和群众发展烤烟的信心,种植面积逐年减少,国家生产计划任务越来越完成不了。因此,防治烟草花叶病已成为烤烟生产中急迫解决的技术问题。研究经过
Old tobacco area in our province - the tobacco area of Baoji City, but also the main producing areas of wheat, has always been planted late smoke. After 1968, tobacco mosaic disease was seriously devastated. According to the survey, seriously ill plants reached over 50%, causing low yield and poor quality of flue-cured tobacco, affecting the confidence of local leaders and the masses in the development of flue-cured tobacco. The planted area decreased year by year and the task of national production planning was completed more and more Can not. Therefore, the control of tobacco mosaic disease has become an urgent technical problem in the production of tobacco. After the study