Using field plot test, the control effects of three microorganic nematicides: IPC, ZK7 and 412 were tested from tobacco biological character ,infection situation and economic properties.

• 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。