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Trichoderma has strong adaptability and rapid propagation. It can secrete toxins and inhibit the growth of the mycelium of the mushroom. Trichoderma can also grow on the mycelium of the shiitake mushroom, which weakens the growth potential, so that the cells of the shiitake mushroom can be dissolved and died. When the production environment is not clean, the sterilization of culture materials is not thorough, the inoculation operation is not strict, and in high temperature and high humidity conditions, it will give opportunities for the infection of Trichoderma, especially the mushroom field and old mushroom shed for many years, often it is Trichoderma Sites where the damage is caused.
Trichoderma has no ideal radical drug so far. Therefore, the creation of an ecological environment suitable for the growth of mycelium of mycelium is not conducive to the reproduction of Trichoderma, and it is the fundamental measure to control the damage. In the event of trichoderma damage, it is necessary to immediately ventilate and reduce humidity in order to suppress the expansion of Trichoderma. After the culture material in the fungus stage is infected, the injection of liquid can be used to suppress the expansion of Trichoderma. The commonly used liquid is 5%. Stone carbonic acid, 2% formaldehyde, 1:200-fold 50% carbendazim, 75% thiophanate-methyl, and lime water with a pH of 10, in addition, the ash surface was sprinkled to the pollution site, and the control effect was also good.
Harm and Prevention of Trichoderma Mushroom
Trichoderma is the most dangerous of all the bacteria that harm the growth of shiitake mushrooms. Trichoderma, also known as green mold, is widely distributed in various plant residues, soil and air. Trichoderma spread by spores, often through the air, water droplets, insects, raw materials, tools and operators of the hands, clothing and other media, invade the medium, once the conditions are appropriate to germination and reproduction damage.
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