Jiang Guangpu of Xuzhou City came to the telephone and said that some of his mushrooms had a brown rotten appearance where their caps and stipe were in contact with each other, and they had a sticky sensation in the place where they were rotted by hand, and they emitted a stench of stench. This situation has a certain degree of contagion in the shed, mushrooms are basically concentrated together, the incidence of about 70 square meters, with carbendazim and other agents have no significant effect. He asked what was the cause of this and what should be done to prevent the disease from spreading. It is understood that the temperature inside the shed is about 14°C and the humidity is high.
According to Song Jin?d, an expert in edible fungi research at the Jiangsu Academy of Agricultural Sciences, the situation reflected by Jiang Guangpu is likely to be a bacterial disease. Under normal circumstances, mushrooms caused by bacterial diseases, the surface of the mushroom body will secrete mucus, giving off odors. These diseases are caused by poor ventilation and high temperature and humidity in the shed, especially when the mushroom market price is high. Some farmers often increase the amount of water spray to promote mushrooming, resulting in mushroom disease, brown spots, rot, etc. symptom.
Mushroom disease, rot disease, and rust spot disease are common bacterial diseases. It is difficult to distinguish the species of bacteria by the naked eye. The disease spreads through earth-covering materials, tools, human bodies, and waste materials, and is rapidly affected by high humidity and poor ventilation. . To prevent such diseases, attention should be paid to the following points: (1) Prophylactic use of the mushroom shed. (2) Immediately after the onset of the disease, spray antibiotics such as agricultural streptomycin, remove mushrooms, and strengthen ventilation. Two consecutive doses were given within one week after onset. (3) When the incidence rate reaches 50%, increase the illumination, strengthen the ventilation, remove the mushrooms and readily destroy the material surface, and continuously spray 2-3 times of the drug. (4) When the disease is severe, the fungicides can be used to soak the fungus sticks, and then re-pile the crucibles, increase the ventilation volume, and minimize the humidity. The normal management can be resumed after 1 week.
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