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北京地区早熟禾叶斑（枯）病病原菌为早熟禾德斯霉，病原生物学研究表明：孢子萌芽的适宜温度为１６～３２℃，菌丝体生长的适宜温度是２４～３２℃。早熟禾榨出液对孢子萌芽有显著促进作用。２４℃下病菌产孢量显著高于其他温度；ＰＳ２Ａ培养基上产孢量最多。２０℃和２５℃下的病情指数显著高于其他温度。杀菌剂试验表明：７０％代森锰锌、８０％大生和５０％扑海因对该病有很好的预防保护作用。
The pathogen of leaf spot (withered) disease in Beijing was premature, and pathogen biology showed that the suitable temperature for spore germination was 16 ~ 32 ℃, and the suitable temperature for mycelial growth was 24 ~ 32 ℃. Poa juice extract of spore germination had a significant role in promoting. The sporulation rate of bacteria at 24 ℃ was significantly higher than that of other temperatures. The amount of sporulation on PS2A medium was the highest. The disease index at 20 ℃ and 25 ℃ was significantly higher than other temperatures. Bactericide test showed that: 70% mancozeb, 80% of students and 50% of the blood for the prevention and treatment of the disease have a good effect.