稻粒黑粉病是一种典型的母体特殊病害,在制种田中发病极为普遍,发病率一般为5.0%~10.0%,重则达20.0%以上,严重影响制种产量和质量的提高。通过对该病侵染循环、发病规律及诱发病害产生的相关因素分析。针对稻粒黑粉病的发生特点,提出综合防治措施及对策。 Rice powdery mildew is a typical maternal disease which is very common in farming. The incidence is generally 5.0% -10.0% while the weight is more than 20.0%, which seriously affects the yield and quality of seed production. Through the infection of the disease cycle, the incidence of pathogenesis and disease-related factors analysis. According to the characteristics of rice grain smut, we put forward the comprehensive prevention measures and countermeasures.