1, malformed mushrooms
(1) Symptoms: The fruiting body grows into an irregular shape, which is a deformed mushroom, thereby reducing the value of the product.
(2) Cause: During the growth of fruit bodies, the temperature above 22°C was encountered, which inhibited the differentiation and development of caps. In addition, when the relative humidity of the air is lower than 70%, it is easy to grow into malformed mushrooms.
(3) Prevention and control methods: Reasonably arrange the mushrooming season, control the temperature of the mushrooming at 13-20°C, and avoid mushrooming above 20°C. During the growth of fruiting bodies, the relative humidity of the air in the mushroom house is maintained between 80-90%, which satisfies the moisture conditions required for fruit body growth and development. Timely opening of the mushroom, strengthen the ventilation and ventilation management, keep the air inside the mushroom house fresh and avoid the high concentration of carbon dioxide.
2. Yellow rot
(1) Symptoms: The early stages of the fruiting body are prone to melasma, which then spreads to the entire mushroom body. The mushroom body stops growing and eventually turns yellow, soft, and rot. This is a disease caused by bacteria Pseudomonas.
(2) Occurrence conditions: High temperatures (above 20°C), high humidity, and poor ventilation can easily occur. It is mainly transmitted through water. It is easy to occur when the water content of the fruiting body is too high.
(3) Control methods
First, during the mushrooming period, when the temperature is higher than 18°C, do not spray water on the fruit bodies, and only spray water on the ground and surrounding walls to increase the humidity.
Second, during the mushrooming period, ventilation and ventilation management should be strengthened to avoid high temperature and high humidity environment. After each water spray, combined with ventilation and ventilation management to reduce the moisture on the surface of the mushroom body can prevent bacterial diseases.
Third, after the occurrence of diseases, timely removal of mushrooms, strengthen ventilation and ventilation management, to prevent the spread of other mushrooms.
3, wilt
(1) Symptoms: Pleurotus eryngii grows to a halt, shrinks and dies, and eventually turns yellow and decays. This phenomenon occurs mainly due to the death of young mushrooms caused by high temperatures (above 22°C), and eventually bacterial infection, yellowing, and rot.
(2) Occurrence conditions: During growth of fruit bodies, the temperature is controlled between 10-20°C, and the maximum temperature must not exceed 22°C. Take cooling measures at high temperatures. After the mushroom withered and died, it was removed in time to prevent the bacteria from multiplying and the mushroom body was rotted, which induced the pests to feed and reproduce, resulting in insect infestation.
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