How to prevent and control shiitake mushroom deformity disease? A full analysis of the technical points

Shiitake mushrooms come in two kinds, dry and fresh; the fresh ones are a bit cheaper, while the dried ones cost a little more. Shiitake is a common edible fungus in our daily lives, with a delicious taste and relatively high nutritional value, especially suitable for making soup. During the cultivation of shiitake mushrooms, deformity disease easily occurs, so what are the key points for prevention and control?

1. When are shiitake mushrooms generally planted?

The planting time for shiitake mushrooms is determined by the variety, and the planting time differs slightly among different varieties. Generally speaking, the suitable time for planting shiitake mushrooms is September to October, because the temperature at this time is generally around 25°C, and for two months after inoculation the temperature will not exceed 15°C, so this is a suitable temperature for shiitake mushroom growth, and only then will the mushroom yield be high.

In shiitake mushroom production, the links of culturing, inoculation, test tube dispensing and sterilization must be done well, so as to reduce the invasion of pests and diseases.

Shiitake mushrooms can also be divided into early-fruiting varieties and late-fruiting varieties. When choosing varieties, everyone must clearly understand their characteristics and choose a suitable time for planting.

2. What are the key technical points for preventing and controlling shiitake mushroom deformity disease?

First, before planting shiitake mushrooms you must clearly understand the characteristics of the spawn and choose shiitake varieties suitable for local planting, so that a suitable time can be chosen for inoculation. This is also an important link in ensuring normal shiitake mushroom production.

When the mycelium is mature, you must not blindly remove the bags, because doing it too early or too late also has a relatively large impact on it. For example, if the bags are removed too early, the mycelium is not yet fully mature, so the phenomenon of deformed mushrooms or mutated mushrooms occurs more often.

Second, management during the color-turning period of shiitake mushrooms is also very important. During this period, pay attention to temperature changes; in the first three days the temperature is best kept within 25°C, and if film is laid over the mushroom bed, do not uncover it for ventilation. Under normal external conditions, color turning will occur in no more than half a month, and after three days the first flush of mushrooms will appear.

Third, during the day, cover the mushroom bed with plastic film as much as possible, and after 12 midnight uncover it for ventilation for one hour, so that there will be a day-night temperature difference.

Fourth, if the water content inside the fungus logs is lower than 40%, the shiitake mushrooms will be relatively small and difficult to fruit. So when the weight of the fungus logs is lower than 30% of the original weight, they must be soaked in water.

Fifth, after harvesting the first flush of shiitake mushrooms, the film must be uncovered for ventilation for one week, so that the mycelium can fully absorb oxygen and restore strong growth vigor. In order to promote the growth of the next flush of mushrooms, water must be sprayed alternately wet and dry.

Sixth, when the cap of the shiitake mushroom shows curled edges and the stipe is of suitable size, it should be harvested; be sure not to harvest too late, so as to avoid the shiitake mushrooms becoming over-mature and developing rot, deformity and other phenomena.