How to control the leaf spot of mushroom
Mushroom leaf spot, also known as brown spot, bacterial spot. The pathogen is a kind of eosinophilic Pseudomonas Torrance. It is transmitted by insects, utensils, hands of staff and other media. The disease is serious when the pH value of the covered soil of the mushroom bed is less than 5.5.The disease is serious when the ventilation is poor, the humidity is too high, and the bacterial cover is always sticky and wet after spraying water. Its symptoms are: generally only infect the epidermis of mushroom lid, making it appear yellow-brown rust-like spots of different sizes at first, then gradually become brown or black, and sometimes there will be scars with mucus on the lid. The disease spreads rapidly. When the infection is mild, the mushroom shape is normal. In severe cases, hundreds of sunken spots appear in the mushroom lid or the disease spot expands to show stripes, and the fruiting body is deformed. The stalk is sometimes infected with longitudinal concave spots.
Methods of prevention and control:
The main results are as follows: (1) when covering the soil, the pH value of the soil layer should be adjusted to 6.5 Mel 8, and the ventilation should be strengthened during cultivation.
(2) when the disease is serious, the temperature and humidity of mushroom room should be controlled. 0.04% oxytetracycline and 0.04% streptomycin were sprayed on the mushroom bed every other day. The pH value of the subsequent mushroom bed spraying should be adjusted to 8 until the pH value of the soil layer is maintained at 6.5 Mel 7.5.
(3) sprinkling a thin layer of quicklime powder on the surface of the overlying soil layer can also effectively control the development of the disease.
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How to prevent and cure mushroom dripping disease
Drip disease is caused by rod-shaped bacteria. The symptom is to produce colorless or yellowish-gray water droplets of different sizes on the mushroom body. A small stain of brown or yellow and sometimes green is produced on the cap. The disease was first found in France, rarely found in the United States and Japan, and has not been reported in China. Prevention and control measures: keep the mushroom inside and outside clean and hygienic, strengthen ventilation, do not make the mushroom room too wet.
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How to control soft rot of mushroom
Soft rot is also known as dampness and spore mycosis. The disease is caused by Cercospora infection. Most of them are spread by air currents and splashed water droplets, and spores contaminating the soil can also lead to disease. If the soil is too wet and the temperature is too low, it is also prone to this disease. Most of the fungi occur on the surface of the mushroom bed, and the white cotton-like (also known as spider silk) hyphae first appear on the mushroom bed. If they are not treated in time, the hyphae spread rapidly and surround the buds of small mushrooms. At first, only a mass of white hyphae was seen, and later it became water-red. After the fruiting body was infected by it, the mushroom body became soft and inverted.
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