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1989～1992年进行了气象因素对稻粒黑粉病发生流行影响的系统研究。结果表明,冬孢子萌发的适温范围为18～32℃,最适萌发温度为26～28℃;适温、高湿有利于田间次生小孢子数量增殖;病害发生流行程度（y）与扬花期降雨频率（x1）和降雨量（x2）分别呈极显著和显著相关,其回归模型为:y=-1.8038+0.3499x1+0.0837x2
A systematic study of the prevalence of meteorological factors on rice powdery mildew was conducted from 1989 to 1992. The results showed that the optimal temperature range for winter spore germination was 18 ~ 32 ℃ and the optimum temperature for germination was 26 ~ 28 ℃. The suitable temperature and high humidity were conducive to the proliferation of secondary microspores in the field. The epidemic degree (y) The monthly rainfall frequency (x1) and rainfall (x2) were significantly and significantly correlated with the regression model as follows: y = -1.8038 + 0.3499x1 + 0.0837x2