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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 experiments, the comprehensive prevention and control measures are summarized as follows:
(1) Do a good job of disinfecting the mushroom house Thoroughly disinfect the mushroom house and its surrounding area to eliminate all kinds of debris. Use lime or yellow mud to sew walls. Use 10% fresh lime water to brush the walls, roof and bed frame, so that Su children spray the ground, the roof, and then sprinkle the lime powder on the ground, and finally use the special mushroom disinfectant at 3 - per cubic meter. -4 g for fumigation. During the cultivation of Pleurotus ostreatus, regular spraying of 0.02% chloromycein or 0.02---0.03 strains is absolutely necessary.
(II) Selection of fine strains Pleurotus ostreatus strains should be selected as high-quality strains with dense, white, thick, strong anti-miscellaneous ability, no pollution and age.
(C) The use of high quality culture materials should be fresh and non-polluting. The ingredients can be added about 2% of lime, 1% of gypsum and 0.1%-0.15% of Kemyme, 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.
(D) to strengthen the cultivation and management of mushroom house temperature in the early stage of cultivation should not be too high, the air humidity controlled at about 70%, unfavorable to the growth of mold in the air, but does not affect the growth of Pleurotus mycelium. When cultivated, the amount of seeds used can be increased, and the amount of general strains should account for 10%-15% of the dry weight, so that Pleurotus ostreatus mycelium can develop 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.
(5) When a small amount of green mold occurs on the culture material of the bed or on both ends of the bacteria bag, smearing or spraying the damaged parts with 0.1% green mold net, 0.1%-0.2% clotrinone or concentrated lime water can prevent Spores spread and spread, or 0.02% bacteria killing treatment of infected sites can inhibit the growth of bacteria. If the bed of bacteria or bacteria in the bag has penetrated into the material, it shall be timely covered with 0.2% bacteria kill liquid soaked in sand, and then gently dig out the contaminated block, spray 0.2 after the removal of the material surface % 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, clomazone 800 times solution can be used, spraying once every 3-5 days, and it can receive a certain control effect. (This article is provided by Han Chaozheng, Institute of Edible Fungi, Binhai County, Jiangsu Province, China. Tel: 0515-4103012 13851113822)
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