Occurrence Causes and Control Methods of Pleurotus ostreatus
1. Stiletto mushrooms. Caps are small, differentiation is poor, and mushroom handles are long. The reason is that the formation of the primordium and differentiation of mushroom house oxygen deficiency, lack of light, the temperature is high, affecting the normal differentiation and development of the cap. Control methods: Strengthen ventilation, adjust light and temperature.
2. Tumor mushroom. Cap performance is mainly due to the edge of a number of granular protrusions, light color, mushroom cover stiffness, growth retardation, severe mushroom cover differentiation is poor, irregular shape. The reason is that the temperature of the mushroom body is too low and the duration is long, resulting in the imbalance of cell growth inside and outside. Control methods: Adjust the mushroom house temperature above the minimum temperature of Pleurotus ostreatus growth, and there is a certain temperature difference, promote mushroom growth, development, differentiation.
3. Cauliflower mushroom. Mushroom shaped like cauliflower, much branched. The reason is that the mushroom bed or mushroom house was sprayed with a high concentration of pesticide before or during the mushrooming period. The juvenile mushroom is extremely sensitive to this disease most easily. It may also be that the mushroom house contains other harmful gases, such as high concentration of carbon dioxide, sulfur dioxide emitted from coal combustion, and so on. Control methods: mushroom pesticides with caution, concentration can not be too high when used.
4. Shrinking mushroom. The early development of the mushroom body is normal, that is, yellowing, edema, or dry shrinkage during the swelling period, and the growth stops and finally becomes soft and rot. The cause of edema is that the humidity is too large or there is more water directly sprayed on the young mushroom body, making the mushroom tissue absorb water, affecting the respiration and metabolism and stopping the growth and death. Shrinkage is due to the relative humidity of the air is relatively small, ventilation is too strong, the wind blows directly on the mushroom body, so that the mushroom loses water and die. Or the nutrient of the culture medium is imbalanced, after forming a large number of primordia, some of them grow rapidly, and the rest are stagnated due to insufficient nutrition supply. Control methods: use good varieties.
5. Coral Mushrooms. The primordium is abnormally differentiated, loose, and has many small branches that resemble corals. Control methods: Strengthen ventilation and light adjustment of carbon and nitrogen ratio, add nitrogen source. Http://
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