我省棉花铃病主要有疫病、角斑病、红腐病、红粉病等。若夏秋多雨,棉田湿度大时,铃病发生重;棉花施氮肥量过大,棉苗密度大,晚发旺长,铃病也重;害虫的危害,特别是棉铃虫的危害,会给棉铃造成伤口,有利于病菌侵染,进而使铃病发生加重。 Cotton boll diseases in our province are mainly disease, angular leaf spot, red rot, pink disease and so on. If the summer and rainy, cotton fields humidity, bell disease occurred heavy; cotton nitrogen fertilizer is too large, dense cotton seedlings, late blooming, bell disease is also heavy; pest hazards, especially the harm of cotton bollworm, cotton boll Cause wounds, is conducive to bacteria infection, thereby aggravating the bell disease.