What is the common mold pollution of mushroom? What are the main points of comprehensive control methods?

Slippery mushroom is a kind of mushroom with very high nutritional value. We also call it pearl mushroom, slippery mushroom and so on. This kind of mushroom tastes crisp and tastes very tender and slippery. If you eat it with chopsticks, you can't pick it up. It's too slippery. In the specific cultivation process of Pleurotus ostreatus, it is easy to be contaminated by mold. What is the common mold pollution of Pleurotus ostreatus? What are the main points of comprehensive control methods?

First, what is the common mold pollution of mushroom?

During the cultivation of Pleurotus ostreatus, Penicillium, Trichoderma, Aspergillus and Alternaria are easy to appear. This type of mold has a strong ability to reproduce when the temperature is relatively high, the ventilation is poor, and the humidity is relatively high. Turquoise, green, orange, yellow or black moldy objects will appear on the culture material at the later stage of planting. Once molds appear, they will compete for nutrients with the mycelium of Pleurotus ostreatus, and some molds will secrete toxins, affecting the normal growth process and development of Pleurotus ostreatus. Among these molds, Trichoderma is the most harmful to Pleurotus ostreatus.

Second, what are the key points of comprehensive prevention and control methods for mushroom and mold pollution?

Because the growth of mold has a great impact on Pleurotus ostreatus, so in order not to affect the commercial nature of Pleurotus ostreatus, such as preventing the occurrence of mold in advance.

First, choose the correct culture medium and deal with the culture material. Before we mix the culture material, we should let the raw material be exposed to the sun for three or four days, so that the miscellaneous bacteria in the raw material can be reduced. Generally, we choose to mix carbendazim into sterilization, or we can choose thiophanate methyl, carbendazim and so on.

Second, we should strictly grasp the vaccination pass. For example, high quality and suitable strains are the key factors for the success of planting Pleurotus ostreatus. When selecting seeds, we should choose the slippery mushroom age of about one month, when the hyphae are relatively white and dense, there is no phenomenon of falling off the wall or stagnant water, and there is no fruiting body formation, especially the one without pollution is better. When there are these good raw materials and bacteria, but also to achieve vaccination tools, places, personnel health work, in order to avoid the phenomenon of infection.

Third, do a good job of protection of cultivation bags. In the process of mushroom cultivation, mold infection is easy to occur if the quality of the cultivation bag is not good, so it is necessary to choose a bag with uniform thickness and good quality. Don't let anything sharp scratch the bag. Keep it in a smooth place when the bag touches the ground. Disinfect hands and tools during handling.

Fourth, correct management. If the temperature of the inoculation bag is controlled at about 25 degrees Celsius and the humidity is controlled at 80 or 90 percent, it is not easy to have miscellaneous bacteria. If the temperature or humidity is too high, penicillium or Trichoderma will appear.