During the period of the long mushroom, the coal stove is heated in the mushroom farm, or the kitchen is close to the kitchen. Because the smoke generated from the burning of coal and firewood contains more harmful gases such as ethylene, sulfur dioxide and carbon monoxide, together with poor ventilation and ventilation. Causes poisoning of mushroom body, and then changes in color. According to the survey, in the mushroom house where the blue oyster mushroom has occurred, the gray-brown and gray-white oyster mushroom species are generally infected, while the milky white oyster mushroom species are not sensitive to the reaction. It is preliminarily inferred that the factors causing discoloration of the mushroom body are related to the chemical composition of the mushroom body. When the disease occurs, a blue halo is generated on the edge of the cap, and after the disease is aggravated, the surface of the mushroom body is covered with a blue cover until the harvesting does not disappear, and the disease is long and the color is darker; the blue mushroom is The discolored parts are mainly concentrated on the epidermis of the cap of the fungus, and the flesh and stipe usually do not change color. The shape of the mushroom body remains unchanged, and the phenomenon of development is not obvious. The change in the internal composition of the discolored structure of the blue oyster mushroom is not yet clear, and no adverse reactions were observed after the mushroom was eaten, but its appearance often causes consumers to doubt. Control measures: Warming measures in winter mushroom farms should adopt solar energy, heating, electric heating and other methods. If coal fire, firewood and other methods are used for heating, pyrotechnic pipes with closed heat transfer should be installed.
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