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研究了环境温度、相对湿度和日照时间对小麦雪霉叶枯病菌（Ｇｅｒｌａｃｈｉａｎｉｖａｌｉｓ）侵染和寄主发病的影响。结果表明，该菌分生孢子萌发和初生菌丝生长温度范围为０～３０℃，适温１１～２８℃；较低温度（１１～２０℃）有利于病菌侵入以及寄主病叶和病斑数的增多，较高的温度（２５～３０℃）有利于侵入菌丝的扩展和病斑增大；２０℃时相对湿度高于９３％，侵染才会发生；在日照０～２４ｈ的条件下，均能侵染和发病，而以６ｈ以内为最适
The effects of ambient temperature, relative humidity and sunshine duration on Gerlachianivalis infection and host disease were studied. The results showed that the conidial germination and mycelial growth temperature ranged from 0 ℃ to 30 ℃ and the optimum temperature ranged from 11 ℃ to 28 ℃. The lower temperature (11 ~ 20 ℃) , The higher temperature (25 ~ 30 ℃) is conducive to the expansion of invaded mycelia and lesion increases; relative humidity above 93% at 20 ℃, infection will occur; 0 ~ 24h sunshine conditions , Can be infected and the incidence, but less than 6h for the most appropriate