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１９９４～１９９６年研究结果表明：５月初始见病株，病菌生长最适温度２６～３２℃，伴有雨湿时，形成田间发病高峰期，此温时值６月中旬至７月上旬。这时气温高，田间植株分蘖快、密度大，田间水肥足，加之常遇梅雨天气，发病更重，常成片枯死；当天气干燥时，菌丝集结成菌核，散落土中越冬，成为次年的初侵染源。提出精选母株，轮作并合理密植，科学用水，合理施肥，辅以药剂的防治方法。
From 1994 to 1996, the results showed that in May, the optimum temperature for pathogen growth was 26 ~ 32 ℃, with the onset of the peak incidence in the field when it was wet with rain. The temperature ranged from mid June to early July. At this time the temperature is high, the plant tiller fast, high density, field water and fertilizer enough, coupled with the usual rainy season, the incidence is more serious, often into pieces dead; when the weather is dry, mycelium gathered sclerotia, Became the source of early infection. Proposed selection of parent plants, crop rotation and rational close planting, scientific water, fertilization, supplemented by agents of the prevention and treatment methods.