Flammulina velutipes black spot disease rust disease how to do?

Flammulina velutipes black spot disease rust disease how to do? please guide Black spot: A bacterial disease caused by pseudomonads. After the disease, Flammulina velutipes cap appears oval brown or dark brown spots, initially needle-like, enlarged diameter of 2-4 mm, neat edges, sometimes cap cracking. Control methods: The key is to control the appropriate temperature and humidity. When watering mushroom houses, do not sprinkle water directly on the fruiting bodies of Flammulina velutipes. Do not spray cold water. The humidity in the mushroom house should not exceed 90% for a long time, depending on the weather change, watering should be light, frequent and fine on sunny days; less or no watering on rainy days. After each watering, strengthen ventilation first, and then cover with plastic film. The indoor temperature should be adjusted to below 17 degrees Celsius during fruiting. After the disease, the diseased mushrooms should be removed in time and sprayed with 100-200 units of agricultural streptomycin or bleaching powder 600 times per milliliter. Second, rust spot disease: is caused by pseudomonospora disease. It is mainly infected with mushroom cap, which is needle-shaped in the early stage and expanded into sesame grain size. Although the edge is not neat, the spots can be combined into irregular large rust spots. Control methods: In order to prevent the occurrence of rust spot disease, do not spray water directly on the fruiting body when watering the mushroom house, ventilate in time after watering, the relative humidity of indoor air should not exceed 95% for a long time, and the surface of the fungus bag should be covered with plastic film after the fruiting body is dried. At the beginning of the disease, the pathogen should be prevented from spreading to healthy fruiting bodies, and sprayed with 50% carbendazim 800 times solution or agricultural streptomycin containing 100-200 units per ml. Click for more Flammulina velutipes cultivation technology Click for more edible mushroom cultivation technology