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人工接种实验结果证明,哈尔滨市早熟禾锈病是由冠锈菌（Pucciniacoronatavar．coronatacummins）引起的,其转主寄主为：小叶鼠李（RhamanusParvifolia）、金刚鼠李（R．diamantica）和东北鼠李（R.yoshhinoi）。该病菌主要以冬孢子越冬,也有少量夏孢子可以越冬。用夏孢子人工接种潜育期为9～14d,用锈孢子人工接种在20℃时潜育期为8～12d。早熟禾锈病的发病高峰期一般在8月上旬～9月中旬，病情的轻重与降雨量关系较大。防治试验结果表明：用火烧去草坪上的干枯叶能推迟和降低发病率10％；定期合理修剪草坪，茬高8cm能减轻发病率40％；喷洒15％粉锈宁可湿性粉剂防治效果明显。
The result of artificial inoculation experiment showed that the early stage of rust in Harbin was caused by Pucciniacoronata var. Coronatacummins, and the host hosts were Rhamanus Parvifolia, R.diamantica, R. yoshhinoi). The bacteria mainly winter wintering spores, but also a small amount of summer spores can wintering. Artificial inoculation with uredospores latent period of 9 ~ 14d, artificial inoculation with rust spores at 20 ℃ latent period of 8 ~ 12d. The incidence of Kentucky Bluegrass rust peak is generally in early August ~ mid-September, the severity of the disease and rainfall greater. The results of the prevention and cure test showed that burning the dried leaves on the lawn can delay and reduce the incidence of the disease by 10%; cutting the lawn regularly and cutting the height by 8cm can reduce the incidence of the disease by 40%;