为了确定 3种微生物杀线虫剂IPC ,ZK7,412对烟草根结线虫病的防治效果 ,通过田间小区试验 ,从对烤烟的生物学性状、发病情况、经济学性状等方面进行了全面考察 .结果表明 ,3种微生物杀线虫剂的防效均优于生物农药 ,其防治效果分别为 6 1.7% ,6 4.7% ,70 .5 % ,对烤烟生物学性状、经济学性状的改善效果也明显好于生物农药 .因此 ,微生物杀线虫剂可在烤烟生产上推广应用 In order to determine the control effect of three kinds of microbial nematicides IPC and ZK7,412 on tobacco root-knot nematode disease, field tests were conducted to study the biological characteristics, incidence and economic characteristics of flue-cured tobacco. The results showed that the control effect of three kinds of microbial nematicides was better than that of biological pesticides. The control effects were 6 1.7%, 6 4.7% and 70.5%, respectively. The control effect on the biological and economic characters of flue-cured tobacco was also better Therefore, the microbial nematicide can be widely used in the production of flue-cured tobacco