番茄溃疡病是一种由细菌引起的维管束病害。病株从幼苗到座果期都可发生萎蔫和死亡。病害发展后期茎秆上出现狭长的条斑,上下扩展,髓部变褐变空,病部增粗,茎秆上产生大量气生根。病原细菌通过维管束侵染果实、胎座和果肉,在暴风雨多或有喷灌条件的地方,果 Tomato canker is a vascular disease caused by bacteria. The diseased plants can wilt and die from the seedling to the fruit-bearing stage. Narrow streaks appeared on the stems of the late stages of disease development, spreading upwards and downwards, browning and emptying of the pith, thickening of the diseased parts and generating a large amount of aerial roots on the stems. Pathogens invade through the vascular bundles of fruit, placenta and pulp, in the storm or sprinkler irrigation conditions, fruit