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Symptoms of leaf smut are: the main damage to the leaves, scattered along the vertical along the veins longitudinal short-spotted lesions, the latter lesion grayish black, slightly elevated, around the lesion yellow, within the thick spores spores, severe illness Spots can heal into large lesions, causing the tip yellow.
The occurrence of smut in the plots differs greatly. Generally speaking, the application of late-stage N fertilization, long-term deep-water irrigation, and premature water shortage in later stages is more severe.
According to the characteristics of the disease surname, the balance of nitrogen, phosphorus, and potassium should be emphasized in fertilization, so that dry, wet and wet irrigation and living water can be achieved. In general, chemical prevention and control can be combined with other diseases such as flavonolone and Jinggangmycin.
Rice leaf smut disease and its control technology
Rice leaf smut is also called melanophobia and it is one of the main diseases of rice in the later period. It often interacts with aging and promotes each other. That is, senescence aggravates the occurrence of leaf smut, and black leaf meal accelerates the aging process.