Corn size spot disease prevention
Common corn diseases are smut, dry rot, sheath blight, and viral diseases. The most common are corn leaf spot and small spot disease. These two diseases are distributed throughout the country's corn producing areas. Frequent replacement of varieties has a tendency to increase in some areas. Corn spot disease is also known as "coal disease", "wild wilt", and "speckle disease." Small spot disease is also called "spot disease". Pre-symptoms are sometimes confusing. Maize leaf spot and leaf spot mainly damage the leaves, and it can also damage leaf sheath, temporal lobe, ear and grain. The large spot disease shows a spindle-shaped lesion on the leaf, and the small spot disease is generally an elliptical sub-class. The pathogenic state of corn leaf spot was Aspergillus globosum, and the anamorphosis state was anamorphous genus Helminthosporium; the pathogenic state of the leaf spot was Ascomycota, and the asexual state was Sexless bacteria Bipolaris. High-temperature, high-humidity, and fine weather are the most suitable conditions for spot disease. Dry-land corn has a high incidence of disease. Autumn corn is more severe if it is removed from the summer corn field in severe fields. Before and after the most susceptible to disease; plant growth is robust, dark leaves are not susceptible to disease. Prevention methods: (1) selection of disease-resistant varieties: the selection of local varieties of high yield resistant varieties. (2) Sterilization source: remove the diseased body and reduce the initial infection source. (3) Strengthen cultivation management: Rational fertilization enhances plant resistance. (4) timely removal of diseased leaves: removal of diseased leaves to reduce re-infection sources. (5) Chemical control: According to the condition, the combination of "selective treatment" and "general treatment". Ice Silk Cotton Mask,Cotton Mask With Valve,Breathable Cotton Mask,Breathable Ice Silk Cotton Mask Puyang Degren Medical Equipment Co., Ltd. , https://www.degrenyuwei.com