井岗霉素防治早稻纹枯病，其控病效果与施药时病情基数和控病时间有关，早稻纹枯病的防治以施药１～２次为宜，一次施药适期为孕穗至抽穗期，其控病效果为６３％～７４％，两次施药适期为孕穗至灌浆期，控病效果为８６％～９３％，不同施药措施对纹枯病控制效果与经济效益都有显著影响，用药次数一般不必超过两次。 Jingangmycin against rice sheath blight, its disease control effect and application of disease base and disease control time, early rice sheath blight prevention and control in order to apply 1 or 2 times is appropriate, a suitable application of booting to the spike The control effect was 63% -74% at heading stage, and the booting application period was between booting stage and filling stage, the control effect was 86% -93%. The control effects and economic benefits of different spraying methods on sheath blight Have a significant impact, the number of medication generally do not have to be more than twice.