First, green mold, green Trichoderma, mycelium early white, gradually become light green and turn dark green, the bacteria is the enemy of the growth of Pleurotus ostreatus, this mushroom and Pleurotus like hi growth in the acidic substrate, In case of high temperature and high humidity, when the air is not fresh, the bacteria can easily be produced, sometimes suddenly exploding in large areas, resulting in failure of cultivation. Therefore, we must maintain the air circulation in the training room, temperature and humidity should be appropriate to avoid this situation. Once it occurs, the use of concentrated lime water with a pH value of 10 or above, or flushing with a solution of water and alkali, shall be removed in time to eliminate the occurrence of spotting.
Second, the main way to cause bacterial contamination
One is that the raw materials (cottonseed skin and bacteria species) are in themselves inoculated with bacteria during the inoculation, and the second is the intrusion of external bacteria during the cultivation process. Therefore, we should step-by-step through every aspect of the cultivation of the oyster mushroom. The principle of combining prevention with prevention is to actively adopt effective prevention and control measures to treat early and small illnesses to ensure that the normal growth of oyster mushrooms can achieve high quality and high yields.
Third, how to deal with
When the cultivated pleurotus ostreatus is contaminated with bacteria, it is necessary to identify the causes and deal with it in a timely manner. During the spring cultivation, a large area of ​​pollution suddenly occurs. First, consider the contamination of the culture material and the ingredients before it. If the bacteria occurs around the inoculation block or the inoculation eyes, Considering the impure bacteria, the pollution caused by its own bacteria, scattered spots on the surface of the material to consider the later invasive bacteria. In the fungus and management of Pleurotus ostreatus, it is necessary to pay attention to the contamination of the contaminated bacteria at any time, find out the pollution, and find out the reasons for immediate treatment, the sooner the better. When star spots or small pieces of bacteria are found on the surface of the material, they must be washed with concentrated lime water with a pH above 10, and then the contaminated material surface should be removed with a sterilized knife, and then the surrounding material should be filled with concentrated lime water. On-demand bacteria can be. And pay attention to cultivation under low temperature, ventilation and dry conditions.
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