The effect of infection of root-knot nematodes on the incidence of bacterial wilt was discussed from the view of the difference of incidence of bacterial wilt and the change of relative conductance.

• [方法]选用西粉3号番茄在试验基地进行基质栽培试验，从青枯病发病率的差异和相对电导率的差异的角度，探讨根结线虫的入侵对青枯病发生的影响，并对合肥地区侵染番茄的根结线虫进行鉴定。