稻粒黑粉病(Tilletia barclayana)是近年来杂交稻制种田危害十分严重的一种病害。目前对此病的防治研究已日益受到人们的重视,众所周知,稻粒黑粉病是一种典型的气流传播而侵染花器的病害,空中担孢子和次生担孢子浮游数量的多少对后期病害的发生起到决定性的作用。为进一步认识稻粒黑粉病菌在空中的飞散动态,我们于1991～1992年对此病的担孢子和次生担孢子进行了空中监测研究,并探讨了在防治上利用的 Tilletia barclayana is a serious disease in hybrid rice farming in recent years. At present, the research on the prevention and treatment of the disease has been paid more and more attention. As we all know, the rice powdery mildew is a typical disease which infiltrates and spreads the flower by air current. The number of the airborne spores and secondary basidiospores planktonic diseases affects the later stage diseases The occurrence of a decisive role. In order to further understand the spatter dynamics of powdery mildew in the air, we carried out the air monitoring study on the basidiospores and secondary spores of the disease from 1991 to 1992 and explored the utilization of