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2010-2012年,采取普查和系统调查的方法,对泸州烟区烟草大田期主要病害种类与发生规律及影响因素进行调查。结果表明,泸州烟区烟草病害发生程度为中度偏轻发生,叶斑类病害以花叶病、赤星病、气候性斑点病为主,根茎类病害以黑胫病、空胫病为主。除烟草赤星病外,发病率与病情指数从高到低依次为2012年、2010年、2011年。与常规年份相比,2012年部分次要病害发生呈上升趋势,气候性斑点病的发病率和病情指数达到19.21%和15.6,烟草空胫病的发病率和病情指数达到17.12%和12.7,极显著高于2010年和2011年。在发生动态规律方面,烟草花叶病发生高峰期在采收中期,年间差异不显著;部分病害发生的时间与极端气候密切相关,在不同年份表现出一定推迟或提前现象,2011年赤星病发生偏早,2012年烟草黑胫病发病偏晚。
2010-2012, census and systematic survey methods were used to investigate the types, occurrence and influencing factors of major diseases in the tobacco field of Luzhou tobacco-growing area. The results showed that tobacco disease occurred moderately light in Luzhou tobacco-growing areas. Mosaic disease, brown spot disease and climate-spotted disease were the main leaf spot diseases. In addition to tobacco brown spot disease, the incidence and disease index from high to low in 2012, 2010, 2011. Compared with the conventional year, some minor diseases were on the rise in 2012, with the incidence and the disease index of climate speckles reaching 19.21% and 15.6 respectively. The incidence and disease index of tobacco air-shank disease reached 17.12% and 12.7% respectively Significantly higher than in 2010 and 2011. In the occurrence of dynamic law, the peak of tobacco mosaic disease occurred in the mid-harvest period, with no significant difference in years. The occurrence time of some diseases was closely related to extreme climate and showed some delay or advance in different years. The occurrence of brown spot disease in 2011 Too early, 2012 tobacco black shank onset late.