The reader with the phone's tail number 2799 asked: “Black Umai†is on the ears of corn, and some can't spit on Tiansui, and the place where the spit is spearhead is “black Umaiâ€. What's going on here? How to do?
Technology 110 experts: According to the description of the symptoms, it should be corn smut, this disease can be infected in the whole growth period of corn. If it is not rainy this year, it will cause physiological drought, which will lead to the weakening of corn disease resistance. In case of rain or watering, when the humidity conditions are reached, the spores of the pathogenic bacteria in the soil will germinate and cause disease.
It is best to prevent corn smut disease by planting resistant and resistant varieties. In addition, seed dressing before sowing can also be effectively prevented, and seeding or seed dressing is carried out using carbon interest (Difluproon) or difenoconazole. At the same time, applying bactericides such as Altaline (oligosaccharide chain protein) + difenoconazole 1-2 times before tasseling can effectively reduce the occurrence of diseases.
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