Edible fungus cover spot disease in the early stage of the disease, the surface of the mushroom cover is uneven, and then round or irregular lesions. When the humidity is high, the diseased mushrooms on the mushroom bed have white fruit bodies, and the severe pleats stick together. Pesticide should be used in time for prevention and treatment.
The route of transmission and the condition of the disease are generally carried by the soil into the mushroom house and transmitted through the airstream. When the relative humidity of the mushroom room is higher than 95%, it is beneficial to the disease.
Control method:
(1) After the onset of the disease, it is necessary to strengthen the ventilation of the mushroom house, reduce the air humidity and prevent the spread of the disease.
(2) Excavate the diseased mushrooms in time and concentrate them on them.
(3) In the early stage of the disease, 50% of the fungicide carbendazim WP 500 times solution, 70% thiophanate-methyl WP 600 times solution, and 60% anti-mildew bottle 600 times solution are sprayed.
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