杂交稻凋萎型白叶枯病,是同为水稻白叶枯病病原菌侵染引起的白叶枯病的另一种病状。一般在移栽到大田后30天之内出现,病株心叶卷曲,失水青枯而死。部分病株不立即枯死而继续生长,但至孕穗抽穗期成枯孕穗或半枯穗。剖开病株,在叶鞘内侧或茎腔中可见大量菌脓。在收割后的田间残留稻桩中,也常可看到这种菌脓干结粘附。对于稻桩上潜藏的病菌能否存续传病,1977～1979年进行了如下的实验。 Hybrid blight wilt bacterial blight is the same as the bacterial blight caused by bacterial blight infection of another bacterial blight. Generally transplanted to the field within 30 days after emergence, diseased heart curly leaves, dehydration and dead wither. Some diseased plants do not die immediately and continue to grow, but to booting heading stage into booting or semi-dry ear. Cut open diseased plants, in the leaf sheath or stem cavity visible in a large number of bacteria pus. Residues in the field after harvest of rice piles, but also can often see this bacterial adhesion of dryness knot. For the hidden underground bacteria on the pile can survive disease, from 1977 to 1979 conducted the following experiment.