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稻粒黑粉病对杂交水稻制种的产量和质量有严重的危害，有效地控制黑粉病的发生，对提高杂交水稻种子的产量和质量有很大的意义。黑粉病侵染种子的途径有二条，第一条途径是土壤中的越年的厚垣孢子的萌发侵害，一般为主要的途径，第二条是种子本身带有的厚垣孢于萌发后的侵染。
Rice powdery mildew has a serious impact on the yield and quality of hybrid rice seed production. Effective control of the occurrence of powdery mildew is of great significance to improve the yield and quality of hybrid rice seed. There are two ways for the powdery mildew to invade the seed. The first way is the more chronic chlamydospore germination in the soil, which is generally the main way. The second is the seed with the chlamydophila sp. After germination The infection.