烟株摘除底脚叶与防治赤星病关系研究

Control of tobacco brown spot by picking the bottom leaves of tobacco plant

在综合防治烟草赤星病措施中，摘除烟株底脚叶对防治烟草赤星病关系重大。对烟草不同叶位感病程度、不同叶位培养液孢子萌发进行实验，并对摘除底脚叶进行了田间调查。结果表明，在现蕾期摘除底脚叶１～３片，对防治烟草赤星病有明显效果。

The brown spot severity of different stalk position tobacco was examined and picking the bottom leaves in tobacco field was investigated. The results showed that tobacco brown spots were significantly reduced by picking the bottom 1～3 leaves of tobacco plant in rosette stage.