Pollution-free Control of Edible Mushroom Diseases
In the process of edible fungus production, as long as it is managed according to the biological characteristics of the selected strains, there will be no physiological diseases and infectious diseases. Drugs should be used in accordance with the requirements of pollution-free, prevention, and never use drugs casually.
Pleurotus ostreatus, not opening umbrella, this is a typical symptom of hypoxia, especially when cultivated in a semi-underground mushroom shed, this phenomenon occurs, which seriously reduces the quality of mushroom products and affects the production efficiency: the solution is to strengthen ventilation management. the ventilation port and the door are opened from 10:00 to 2pm in the low temperature season, and the ventilation can be given to the centralized cultivation in the mushroom shed, and the normal growth can be restored in about 3 days. Don't take any drugs.
There are three main reasons for this phenomenon: one is that the introduced strain carries some unknown viruses without detoxification, and the other is that the strain is not suitable for low temperature mushroom production. It is in the shape of clenched fist due to the stimulation of low temperature; third, drugs with unknown components are added to the base material, or some sensitive drugs are used in the treatment of mushroom shed or in management, resulting in fruiting body poisoning. When this happens, you should analyze your own production process, if it belongs to the problem of bacteria; if there is no medicine, you can only learn a lesson to prevent the introduction of poisonous bacteria again; if it is due to low temperature, you can try to increase the temperature in the shed, or wait for the temperature to rise. In case of drug poisoning, remedy should be carried out according to the variety of drugs. in mild cases, spraying three-dimensional spermatin solution can alleviate the effect and increase the yield by a large margin.
Pleurotus ostreatus and Pleurotus ostreatus are typical symptoms of frost injury. There are two reasons: one is that the introduced strain is not tolerant to low temperature, which can occur when the strain is about 5 ℃; the other is that the greenhouse temperature is too low, even the cryogenic strain is difficult to tolerate the freezing environment below zero, which should be kept above 5 ℃. This phenomenon can be avoided if the cryogenic strain is kept above 0 ℃.
The symptom of Pleurotus ostreatus is generally a problem of genetic characters of the strain, and there is no effective remedial measure at present, so it can only be prevented by introducing a good seed to a credible unit at the time of introduction.
Pleurotus ostreatus showed that the cap yellowed, the leaves were small and thin, and in severe cases, the whole cover surface turned yellow, and finally died. The disease is caused by bacterial infection, and many people have used a variety of drugs continuously, but the therapeutic effect is not obvious. the solution is to remove all infected mushroom bodies and spray yellow mushroom solution for 2 to 3 times, then it can be inhibited.
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Several points should be paid attention to in replenishing nutrition of edible fungi.
In the process of edible fungus cultivation, reasonable supplement of various nutrients is an effective measure to increase the yield of edible fungi, but improper supplement will also be counterproductive. Therefore, when replenishing nutrition to edible fungi, we should pay attention to the following points. 1. Supplementary methods: the methods of supplementary nutrition to edible fungi are spraying, perfusion and soaking. The most commonly used method is to prepare a certain concentration of nutrient solution, combined with supplementary water to spray on the bacterial bed and bacterial block. When spraying in the bud stage, pay attention to spray the nutrient solution in the place where there is no mushroom or near the small mushroom bud, and wash the fruiting body with clean water after spraying.
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Four New methods for keeping Edible Fungi fresh
The mushroom body of edible mushroom is easy to brown and rotten, and it is not easy to preserve, which affects the commercial value of edible mushroom. In this paper, several new fresh-keeping methods of edible fungi are introduced. 1. The new method of chemical preservation of Pleurotus ostreatus removes impurities from fresh Pleurotus ostreatus and spreads it flat on a clean plastic film. Make a certain concentration of chemical antistaling agent (0.3% calcium propionate, 0.1% potassium sorbate, 0.25% sodium sulfite) solution, spray the front and back of Pleurotus ostreatus evenly with a sprayer, then put it into a fully enclosed plastic bag and store it in a clean and hygienic place.
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