Green mold, also known as green Trichoderma, is one of the most serious pathogens that injure Pleurotus ostreatus. It suffers from various hazards in the different stages of production of Pleurotus ostreatus. Once the disease develops, lighter crops and severe crop failure are important for the development of Pleurotus ostreatus. obstacle. Through several years of exploration and practice, the comprehensive prevention and control measures are summarized as follows: First, do a good job mushroom house disinfection. Thoroughly sterilize the mushroom house and surrounding areas to eliminate all kinds of debris. Use lime or yellow mud to sew walls. Use 10% fresh lime water to paint the walls, roof and bed frame, use Su Er to spray on the ground, roof, and then sprinkle lime powder on the ground, and finally use 10 ml per cubic meter and 5 grams per cubic meter of formaldehyde. Potassium permanganate is vaporized for fumigation. During the cultivation of Pleurotus ostreatus, regular spraying of 0.1% potassium permanganate or 3-5% carbolic acid. Second, select good strains. Pleurotus ostreatus strains should be selected as high-quality strains with dense mycelium, whiteness, stoutness, resistance to miscellaneous diseases, and no pollution or age. Third, use high quality culture materials. Culture materials require fresh, no pollution. 2% of lime, 1% of gypsum and 0.1-0.2% of carbendazim can be added in the ingredients, which can inhibit the growth of green mold. If the culture material is not fresh or has mildew, it should be used after high temperature fermentation. Fourth, strengthen the cultivation and management. The temperature of the mushroom room should not be too high in the early stage of cultivation, and the air humidity should be controlled at about 70%, which will be detrimental to the growth of mold in the air, but it will not affect the growth of Pleurotus ostreatus. When cultivated, the amount of seed can be increased, and the amount of general bacteria should account for 10-15% of the dry weight, so that the mycelia of Pleurotus ostreatus can form growth advantages in a short period of time. During the cultivation process, proper ventilation and ventilation, control mushroom house environmental conditions, so that it is conducive to mycelial growth, inhibition of green mold. Fifth, pharmaceutical control. When a small amount of green mold occurs on the culture bed material or on both ends of the bacteria bag, smear or spray the damaged parts with 0.1% thiophanate-methyl, 0.1-0.2% zeocin, 0.1-0.2% carbendazim or concentrated lime water. Prevent contagios spread, or use 2% formaldehyde and 5% carbolic acid mixture to treat infected sites can inhibit the growth of bacteria. If the bed of bacteria or bacteria in the bag has penetrated into the material, it should be timely covered with 0.2% carbendazim liquid soaked in sand, and then gently dig out the contaminated material, spray the material after the removal of 0.2 % Carbendazim or other fungicides can also be applied with thick lime milk and then filled with fresh material or strains to control its development. For deep contamination of bacteria bags can be buried deep processing. During the mushrooming period, 70% thiophanate-methyl, 50% carbendazim 1000-fold, or 10% water-strengthening agent can be sprayed once every 3-5 days. .
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