Causes and control of too many mushrooms and yellow mushrooms
The reason is mainly due to improper management in the low temperature season. In the low temperature season, the humidity in the mushroom shed may be too high, excessive water spray, too much free water attached to the mushroom body, and can not evaporate after absorbing water, resulting in the weakening of the metabolism of the mushroom body and the entry of various pathogens. Multiply in large numbers, and cause various diseases of the fruiting body. The continuous low temperature weather caused the temperature in the mushroom shed to be too low, and the edible fungus fruiting body was in a bad living environment for a long time, which led to the disease; some edible mushroom varieties were in 3-4 stubble, malnourished in the bag, and the fruiting body after budding could not get sufficient nutrition supply, resulting in yellowing and death.
The first is to spray all kinds of fungicides frequently, such as bacteria killing, bacteria killing, mushroom disinfecting king, trimethoprim, etc., which can be sprayed once a week; second, when the temperature of the mushroom shed is too low, it is appropriate to spray too much water, and the humidity is appropriate to ensure the normal growth of the fruiting body; the third is to increase the temperature of the mushroom shed as far as possible, such as Pleurotus ostreatus cultivation, the daytime greenhouse temperature should be above 15 ℃. Fourth, correctly understand the temperature type and normal growth temperature of all kinds of varieties, and achieve targeted and correct management; fifth, all kinds of disease-resistant and yield-increasing agents should be often sprayed on the mushroom body. you can choose Mushroom Feng No. 1, Guangda fungus King, Lixin fungus King, three-dimensional nutrition essence, mushroom guard, mushroom multiplication and so on; sixth, once the disease occurs, it can be sprayed with bacterial killing, germicidal eradication, mushroom disease dispelling king, mushroom guard, Guangda fungus king, Lixin fungus king and so on.
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Symptoms and control of mushroom brown spot
Mushroom brown spot, also known as dry bubble disease, the distribution is more common, often occurs in the mushroom bed, the harm is very great. Symptoms often form brown spots and depressions on stalks, umbrellas and pleats, and mushrooms often lose their toughness and show deformities. Mushrooms rot in severe cases. The young mushroom is deformed, the edge of the umbrella is serrated, or the stalk is curved, some are shaped like garlic, and the stalk is thicker than the cap. When the disease occurs on the mushroom, it often produces local brown spots, and the diseased mushroom becomes dry and leathery in the later stage, and produces a gray mildew layer in the diseased part. Unlike white rot, diseased mushrooms rot.
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Causes and Prevention of Mushroom malformation
In mushroom cultivation, the following abnormal mushrooms are produced in a high proportion, and the causes and preventive measures are as follows: Pleurotus ostreatus is due to excessive ventilation, low temperature, too late covering fine soil and too wet fine soil particles, which makes the position of the solid primordium too low, the primordium is squeezed by the surrounding soil particles in the process of growing up, the mushroom shape is not round, and the soil on the mushroom surface is like a "landmine". Prevention methods should strengthen water management, spray moisture on coarse and fine soil timely and slowly, reduce ventilation after spraying coarse soil particles, and keep the relative humidity of the air in the room at about 80%.
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