How to prevent straw mushroom from becoming red mushroom disease?

"Red mushroom disease" may be brown rot, also known as vesicle disease, wet bubble disease and so on. Mainly harmful to mushrooms, straw mushrooms, Pleurotus ostreatus and so on. The disease is caused by a pathogen called verrucosporium. The main symptoms are as follows: the conidia and conidia of verrucosporium only infect the fruiting body, but not the mycelium. When the fruiting body is slightly infected, the stalk is swollen into a bubble deformity, so it is called wet bubble disease. However, the disease is different at different stages of fruiting body development. When the fruiting body is infected, it becomes a hard-skinned, irregular tissue mass, covered with a layer of white fluffy hyphae, and gradually turns dark brown, often oozing dark black juice droplets from the diseased tissue. After the differentiation of the cap and stalk, the stalk turns brown, and the infection has a white mycelial growth on the fold. Route of transmission: Alternaria verrucosa is a common soil fungus, which is caused by the soil and waste around the mushroom house. Therefore, verrucosporium is mainly transmitted to the fungus bed and clot through covering soil, air, operators, tools, insects, mice and so on. Control measures: if the covered soil is contaminated by verruca, pasteurization (60 ℃) can be used for one hour, or 4% formaldehyde can be used to disinfect the soil. It can also be sterilized by spraying carbendazim solution or topiramate solution of 1RU 500 in the covered soil. At the beginning of the disease, you should immediately stop spraying water, increase the ventilation rate of the mushroom room, and spray 1% 2% formaldehyde solution or 1Ru 500 carbendazim solution on the culture rack, wall and ground to sterilize. When the disease is serious, it is necessary to remove the original cover soil and replace the new soil. And destroy the diseased mushrooms and disinfect all the tools in a formaldehyde solution with a concentration of 4%.