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对玉米茎腐病病原菌侵染和发病始盛期与玉米生育期关系进行了5a研究，结果表明，玉米出苗后3d就已被茎腐病原菌侵染，根部呈褐色病斑，植株矮小、叶片变黄。播种期接种较常规散粉期接种发病高。玉米茎腐病发病始、盛期都在玉米灌浆后出现。在调查玉米茎腐病和采集病株标本时，可根据玉米灌浆期预测茎腐病的显症期及发病盛期，确定调查适宜时期。
The results showed that maize was infected by stalk rot pathogen 3d days after emergence, the brown spots appeared on the root, the plant was short and the leaf was variable yellow. Inoculation of the sowing period is more frequent than the usual stage of inoculation. Corn stalk rot disease onset, peaked in corn after grouting. In the investigation of corn stalk rot and the collection of diseased specimens, the appropriate period of investigation can be determined according to the predominant stage and the peak stage of stalk rot predicted during the grain filling stage.