Causes of hypha atrophy in cultivation of Volvariella volvacea

1. High temperature burning bacteria: when the temperature in the culture material exceeds 45 ℃ for a long time, the hyphae will atrophy and die.

2. Drug effect: straw mushroom is very sensitive to pesticides. After sowing, mushroom farmers spray pesticides in order to prevent diseases and insects, resulting in mycelium atrophy due to drug damage.

3. Anoxic asphyxia: the water content of the culture material is too high (more than 70%), or the plastic film is too strict, so that the mycelium of volvariella volvacea shrinks due to hypoxia.

4. Ammonia harm: excessive addition of urea in the culture material, or high content of chemical fertilizer in the field, the volatile ammonia can not be distributed, that is, damage to the mycelium of volvariella volvacea.

5. Clumsy strain: the age of the strain is too short or too long, the growth is weakened, the resistance is poor, and it shrinks when the environmental conditions are not suitable.

6. the temperature difference is too large: the hyphae of volvariella volvacea are sensitive to the temperature difference. If the temperature is above 32 ℃ during the day and below 28 ℃ at night, the mycelium will shrink after spraying heavy water.

7. Occurrence of pests: pests occur in the culture material, and the hyphae atrophy because of the bite harm of the pests.