青蒿间作防控多种烟草病害效果及田间互作影响

Effects of tobacco-Artemisia carvifolia intercropping on controlling tobacco diseases and evaluation of field interaction

试验测定了烟草-青蒿间作处理对TMV(烟草花叶病)、TLCV(烟草曲叶病)和烟草黑胫病等烟草病害的防控效果,分析农田昆虫群落结构,评价间作处理对烟株生长的影响。结果表明:烟草-青蒿间作能有效降低田间烟草花叶病、烟草曲叶病和烟草黑胫病的发病率,并降低田间烟蚜和烟粉虱的种群相对密度。与对照相比,青蒿间作模式下烟株光合速率提高,叶片叶绿素含量和基本农艺性状无显著差异,参试烟株正常生长。

Tobacco-Artemisia carvifolia intercropping treatments for prevention and control effect of TMV(Tobacco mosaic virus),TLCV(Tobacco leaf curl virus)and tobacco black shank were determined in this experiment,and the structure of insect community in farmland was analyzed,intercropping treatment effect on the growth of tobacco plant was evaluated. The results showed that intercropping can effectively reduce the tobacco mosaic,tobacco leaf curl disease and tobacco black shank,reduce the Myzus persicae Sulzer and Bemisia tabaci's population density. On the other hand. Compared with the control,the photosynthetic rate of tobacco plants increased under the intercropping mode of Artemisia carvifolia,and there was no significant difference in chlorophyll content and basic agronomic characters,the tobacco plants grew normaly.