Pleurotus geesteranus can be cultivated all year round by low temperature treatment in cold storage. But in natural seasons, mushrooms are generally not produced at high temperatures in summer; It is not easy to produce mushrooms when the low temperature treatment time is too short or the temperature difference is not enough; Variety degradation is also easy to cause mushroom-free; The bacterial contamination of the coating showed that the hyphae grew normally in the early stage, and the coating was soft and yellow in the later stage, resulting in no mushroom.

Precautionary measures: control the temperature of mushroom house not to exceed 28℃; Prolonging the low temperature treatment time; Select suitable varieties; Sterilization of bacterial bags should be thorough; Inoculation should be carried out under aseptic conditions; After the mushrooms are produced, they should be harvested in time, and the mushroom noodles should be cleaned in time, leaving no mushroom stalks; After adding water, make sure there is no water on the surface of mushrooms to avoid mold pollution.