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玉米纹枯病在我国一些玉米产区发病日趋严重,而农民往往忽视对该病害的防治。纹枯病在春、夏、秋玉米上皆可发生,发病株率22%~71%,个别地块或品种甚至达100%,由该病导致的损失一般在15%左右,,发病重时果穗腐烂,造成严重减产,成为制约玉米增产的重要病害因素之一。
Corn sheath blight is increasingly serious in some maize producing areas in China, but peasants often ignore the prevention and control of this disease. Rhizoctonia solani can occur in spring, summer and autumn maize, the incidence rate of plants is 22% ~ 71%, and the individual plots or varieties even reach 100%, the loss caused by the disease is generally about 15% Ear rot decay, causing serious cuts in production, becoming one of the important disease factors restricting corn yield.