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What common diseases should be prevented in roses in winter?
Black spot: the number one disease of the month in summer, and now prevention works well! The rainy season is coming, and some flower friends are happy: God is watering for me. Really too naive and too simple! What about the black spot that is called the number one disease in summer? A few spots grow gently, and the leaves become bald... Many flower friends do not like spraying chemicals.
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Black raised patches appear on the leaves of the Chinese persimmon (Diospyros cathayensis); suspected to be scab. How should it be prevented and treated?
The pathogen of scab is a fungus of the subphylum Deuteromycotina. On affected leaves, small water-soaked round spots appear at first, then turn waxy yellow. The lesions enlarge as the leaves grow and gradually become suberized, bulging out on one side of the leaf as conical scabs while sinking inward on the other side; leaves with many lesions become twisted and deformed.
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What causes carrot root splitting, and how can it be prevented?
Causes of Carrot Root Splitting and Prevention Methods
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What are the advantages of red-fruited elm for shaping, and how should pests and diseases be prevented and controlled?
The shaping advantages of red-fruited elm and methods for pest and disease prevention and control
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What causes fertilizer burn in cotton, and how should it be prevented and controlled?
Causes of fertilizer burn in cotton and prevention and control methods
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How can the good momentum of farmers' income growth be prevented from reversing?
Prevent the good momentum of income growth from reversing
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African swine fever appears in Vietnam for the first time; how should the latest outbreak be prevented?
African swine fever has developed particularly severely in China, so screening at airports is also very strict, and the baggage of passengers at ports is also subject to very strict checks. But what about it? On the Vietnamese side, no news of African swine fever had been reported, so the screening of the baggage of tourists traveling from Vietnam was not subject to such high requirements. However, on February 15, a piece of pork from Vietnam was confirmed positive for African swine fever, the first case of African swine fever from Vietnam.
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Why do loofah leaves turn yellow, and how should it be prevented and treated?
Loofah is also super delicious and tasty, really likable, very delicious, so why do loofah leaves turn yellow? What to do: Why loofah leaves turn yellow: 1. Yellowing of new leaves caused by unreasonable fertilization
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How should repeated fever in pigs be prevented and treated?
Pigs suffering from "high fever syndrome" generally show persistent high fever (around 41.5°C), reddened skin with bleeding spots, cyanosis of the ear tips, congestion of the conjunctiva, labored breathing or coughing, reduced appetite, and abortion in some sows; necropsy reveals brown lesions of varying size in the lungs, and in severe cases the lesions involve the entire lung, while the kidneys appear earth-yellow (similar to the color of the kidneys in swine fever), and the lymph nodes are swollen, hemorrhagic, and juicy on the cut surface. The key to preventing and treating this disease is to adopt a prevention-first policy: first, carry out isolation, disinfection,
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