Straw mushroom large area dead mushroom how to do? Control measures of straw mushroom dead mushroom

During the period of straw mushroom emergence, it is often seen that a large area of young buds on the mushroom bed atrophy, turn yellow, and finally die. The death of straw mushroom is caused by many reasons, and the prevention of straw mushroom death should be given priority to.

Straw mushroom

First, the cause of the death of straw mushroom

1. The ventilation and moisturizing of straw mushroom house are not coordinated. Volvariella volvacea is an aerobic fungus, which needs a lot of water in the growth process of volvariella volvacea. Due to excessive ventilation, water loss is easy to die. Lack of ventilation, too much carbon dioxide in the mushroom room and died of hypoxia.

2. The temperature of mushroom room changed suddenly. Straw mushroom is cultivated in foam mushroom houses in most of the south, and foam plays an important role in constant temperature and humidity. However, if the doors and windows are not closed in time when hit by a typhoon, or if they are not heated in time when they are frozen, or if they are not ventilated and cooled as early as possible in the case of continuous high temperature weather, or if too much well water is sprayed on the floor, and the temperature drops too fast, straw mushrooms will die in batches because of sudden temperature changes.

3. Poor germplasm of volvariella volvacea and harm of diseases and insect pests. Due to various reasons, the suitable age volvariella volvacea strain aged and died because it could not be cultivated in time. The vitality of mycelium is poor, the nutrient accumulation of volvariella volvacea is insufficient after sowing, and the survival rate of mushroom will be very low. At the same time, dead mushrooms can also occur when infected with miscellaneous bacteria or attacked by mites.

II. Prevention and control countermeasures

1. The environment of high temperature and humidity is suitable for the growth of volvariella volvacea. The water content of the culture materials entering the mushroom room should be strictly controlled and the use of over-age bacteria should be eliminated. At the same time, the temperature of the mushroom room is kept at about 30 ℃. If you encounter continuous high temperature and dry weather, you can sprinkle water on the floor of the mushroom room and increase ventilation to achieve the purpose of cooling and moisturizing.

2. The wheat bran (nitrogen) applied on the bed of volvariella volvacea had better not exceed 3% (or not) to reduce the incidence of miscellaneous bacteria and insect pests such as green mold.

3. Be careful and careful when harvesting straw mushrooms, lest small mushrooms are mechanically damaged or the mycelium is pulled off, resulting in dead mushrooms. As long as each production link is operated properly, it can reduce the occurrence of straw mushroom planting dead mushroom.