水稻凋萎型白叶枯病国内外已有报导。我省自1977年青神县500多亩杂交晚稻发病后,随着杂交稻的推广,病区也有所增加。1978年青神、彭县、温江、富顺、渠县及达县市等部份社队的杂交稻制种田相继发生,面积约360亩。该病主要发生在水稻苗期,引起青枯死苗,一般轻者病窝率10％左右,重者高达60％以上。如1977年青神县汉阳公社种 Rice withered bacterial blight has been reported at home and abroad. Since the outbreak of the 500-hectare late hybrid rice in Qingxu County in 1977 in our province, the ward has also been increased with the promotion of hybrid rice. In 1978, hybrid rice farming by some communes and brigades of Qing Shen, Pengxian, Wenjiang, Fushun, Duxian and Daxian took place in succession with an area of ​​about 360 mu. The disease occurs mainly in the rice seedling stage, causing dry dead seedlings, the general light of the nest rate of about 10%, severe cases of up to 60%. Such as 1977 Qingyang County Hanyang commune species