Fungal diseases can also be called non-invasive diseases, such as anthracnose, gray mold, powdery mildew, etc. There are many factors that cause fungal diseases in crops. The most important reason is that soil and climatic conditions are not suitable, usually In the case of fungal diseases can be divided into three categories: Classification of fungal diseases 1, low fungi. Most of them grow in water or soil. The main diseases are collapse disease, root rot, downy mildew, white rust, epidemic disease, and cotton blight. Generally, there are more cases in the spring and autumn when the temperature is low (15-20 degrees Celsius). 2, higher fungi. The main diseases are scab, powdery mildew, anthracnose, leaf spot, black spot and so on. Such as: wheat scab; peanut black spot; grape, apple, peach, melon, wheat, beans, sugar beet powder; cotton, beans, melon anthracnose; apple, pear scab; peach Apricot leafy disease; melon seed blight; grape black rot, house blight; apple ring disease, black rot, rot disease, dry rot; onion leaf blight; eggplant brown streak. The disease occurs at a point where the affected part has a more pronounced edge and forms a lesion of a certain shape. 3, the highest fungus. The diseases caused mainly include smut, rust, sheath blight and blight. Such as: black powder disease, black powder disease, grain black powder disease, leaf black powder disease, pear, peach, apple, grape, bean, peanut, onion, sunflower rust, cotton, eggplant blight. Generally only cause local infection, forming a point of symptoms. Medication for fungal diseases First of all, we must have an understanding of pesticides for controlling fungal diseases. Many drugs for controlling fungal diseases: such as commonly used chlorothalonil, cream, manganese zinc, nail cream, manganese zinc, difenoconazole, triadimefon, diniconazole, carbendazim, thiophanate-methyl, Mancozeb, myclobutanil, tebuconazole, flusilazole, ethylphosphonium bromide, procymidone, amishida and the like. Among them, the prevention and treatment of low-grade fungal diseases include: cream, manganese zinc, nail cream, manganese zinc and ethylphosphonium aluminum; and the prevention and treatment of higher fungal diseases include: difenoconazole, triadimefon, myclobutanil, tebuconazole , flusilazole, diniconazole, carbendazim, thiophanate-methyl, procymidone, and the like. For high-grade fungi and low-grade fungal diseases: chlorothalonil, amishida and manganese-zinc, of which chlorothalonil and mancozeb are protective agents. Amishida is the most broad-spectrum systemic fungicide with killing activity against lower and higher fungi. Knowing the disease and the agent, you can choose the corresponding fungicide according to the pathogenic fungus, such as downy mildew, late blight, plague, squatting disease, etc. It is a low-grade fungal disease, you can choose the cream, manganese zinc or nail Frost·manganese-zinc; for high-grade fungal diseases such as leaf spot, leaf blight, anthracnose, powdery mildew, smut, black scab, early blight, and scab, difenoconazole and triazole can be used. Ketone, carbendazim, thiophanate-methyl, myclobutanil and the like. More pesticide knowledge, please pay attention to China Pesticide Network
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