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Lilium tuber ulcer prevention and frying method
Lily bulbous canker disease is caused by Basidiomycotina fungus, and its onset is characterized by hyphae on the diseased tissue. The pathogen can directly or indirectly invade the stem base of lily. In the continuous cloudy period at the seedling stage, when the temperature is lower than 20°C and in a high-humidity environment, the disease becomes severe when the soil is thick. The prevention and control methods should strengthen cultivation and management, rationally apply fertilizer and water, and enhance plant resistance. In addition, it is also very important to properly plant dense plants and adjust the ventilation and light transmission to pay attention to the drainage during the rainy season. At the beginning of the disease, 20% methyl-prepared phosphorous emulsifiable concentrate 1200 times or 40% pentachloronitrobenzene powder can be sprayed in 500 times, and when severe, 40% pentachloronitrobenzene can be used, and evenly spread on the surface and then poured into the soil for pesticide application. Treatment of soil is also effective.