What are the symptoms of agaricus macular disease? How to prevent?

Bisporus mushroom is planted all over our country, and it is also a kind of edible mushroom with large export volume. Because of its high nutritional value, it is deeply welcomed by consumers. Now the economic benefit of Pleurotus ostreatus in the market is very good, so the planting is more promising, and has the characteristics of less investment and quick results. In the process of planting Pleurotus ostreatus, yellow spot is easy to appear, so what are the symptoms of yellow spot of double spore mushroom? How to prevent and cure?

What are the symptoms of yellow spot of Pleurotus ostreatus?

Yellow spots will appear on the cap at the early stage of infection, and the range will slowly increase with the growth of the fruiting body, and it may also spread to other healthy fruiting bodies. The yellow color will also gradually deepen to the whole cap with small spots. Yellow spot of Pleurotus ostreatus in the later stage will lead to yellowish-brown water droplets, so icicles will no longer grow and die and shrink.

Yellow spot is mainly caused by a kind of pseudomonas, which is a bacterial pathogen, which likes the environment with relatively high temperature and humidity. therefore, when the temperature is more than 20 degrees Celsius, the humidity is more than 90%, and the concentration of carbon dioxide is very high, yellow spot is relatively easy to appear. In addition, poor ventilation in the mushroom shed, unclean water and unclean base materials are also one of the causes of the disease.

Second, how to prevent and cure yellow spot of Pleurotus ostreatus?

First, pay attention to the environmental hygiene in the mushroom shed and do a good job in disinfection and pest control on a regular basis.

Second, the water used must be clean, must not let Pleurotus ostreatus in a relatively high humidity environment for a long time, so do not use too much water.

Third, when the double spore mushroom fruiting body grows, the humidity in the mushroom room should not be too high, do a good job of ventilation and reduce the concentration of indoor carbon dioxide.

Fourth, if the fruiting body has macular disease, it is necessary to timely ventilation to reduce the humidity in the mushroom shed, spray a certain concentration of bleach liquid, and close the mushroom shed for two hours after spraying. After that, open the doors and windows to ventilate and lower the temperature.

III. Matters needing attention in the cultivation of Pleurotus ostreatus

1. The straw for growing Pleurotus ostreatus had better be soaked in water, which is beneficial to fermentation. Replenish water in time before turning the pile for the second time, otherwise the meeting will be difficult to make up and will affect the growth of mycelium.

2. The covered soil must be disinfected. If you choose the untreated soil in the vegetable garden, it is easy to be attacked by diseases and insect pests. Do not add urea when covering the soil, so as to avoid the death of mycelium due to excessive ammonia.

3, do not spray water casually, it is easy to cause a relatively high humidity growth environment, which will lead to the phenomenon of premature senescence and death of mycelium.