近年来,随着我县水稻种植面积的不断扩大,稻曲病的危害也随之愈来愈严重,据1985年7个乡镇水田调查,发病面积占53.3%,发病穗占11.77%,发病粒占6%,空秕率占11.54%,极大地威胁着水稻生产的发展.稻曲病是一种真菌病害,其发病与如下因素有关:1.发病与品种的关系.同一块 In recent years, with the continuous expansion of rice planting area in our county, the damage of false smut has also become more and more serious. According to the survey of paddy fields in 7 townships in 1985, the area of ​​disease accounted for 53.3%, the incidence of diseased ear accounted for 11.77% Accounting for 6%, accounting for 11.54% vacancy rate, which greatly threatened the development of rice production.Degussa disease is a fungal disease, the incidence of the following factors: 1. The incidence and the relationship between the species