浙江省的玉米锈病是以多堆柄锈菌夏孢子的形态侵染玉米造成发病的。为了进一步探讨空中夏孢子分布动态与玉米锈病发生的关系 ,我们于 1 999～ 2 0 0 1年对玉米锈菌夏孢子空中分布动态及田间发病的关系进行了研究 ,结果表明 ,在玉米锈病发病之前 ,往往空中就已有夏孢子存在 ,空 Corn rust in Zhejiang Province is caused by the infection of maize by the morphology of multi-healty rust spores. In order to further explore the relationship between the dynamic distribution of summer spores and the occurrence of corn rust, we studied the relationship between the spatial distribution of summer spores and the incidence of maize rust from 1991 to 2001. The results showed that in the pathogenesis of corn rust Before, often in the air already had uredospores exist, empty