Prevention and Control of Three Diseases of Black Fungus

In the practice of black fungus cultivation, the three major diseases that cause black fungus to lose production or harvest are “red-eye disease”, “green algae disease” and “flowing ear”. The occurrence of these three major diseases occurred from the opening period to the middle ear and into the ear. Most of these diseases are due to the non-standard management of growers' technology. At present, several diseases are more important than prevention. There is no cure for cure.

Red eye disease, symptoms: 5-10 days after opening or drilling, it was found that there was reddish-brown mucus at the opening of the eye. From the mouth, there was a simultaneous appearance of green mold and a large area of ​​breeding. Causes of the disease: (1) The design of the culture racks in the culture room is unreasonable, the spacing layer is too small, the crowded bags are crowded or there is dead space in the ventilation or ventilation. The heat generated between the bag and the bag is not distributed, resulting in a large temperature difference inside and outside the bag, and a large amount of steam water accumulates in the bag, making the mycelium airtight and dead. It is also possible that the top hyphae in the bag will die due to high temperatures. 2 Some of the fungus bags after the fight were piled up and piled up too tightly. There are also piles back to the culturing room. Because the bag holes, good ventilation, mycelium development, mycelium to release a lot of heat, a little careless it will easily lead to high-temperature burning bacteria, mycelium death, cell tissue rupture, nutrient secretion into red water.

Green algae disease, symptoms: The surface of the bag has a green, moss-like appearance, and when it is severe, the fruit body of the fungus grows. Absorption bacteria bag nutrition, resulting in a serious accumulation of water inside the bag caused by the bag phenomenon. Causes of the disease: 1 Water pollution, dead water bubbles, fish ponds, water algae breeding. 2 The bags are too loose and open at the folds. When watering, there is water for a long time, and the green algae are produced through direct sunlight. 3 Watering too much water leads to water accumulation in the bag. After the occurrence of green algae disease, there are almost no drugs to cure because of the bags.

Flow ear, symptoms: black fungus middle ear, ear into the rot decay. Causes of the disease: 1 species of bacteria aging, select a strong anti-resistant strains. 2 improper mix of culture materials, wheat bran, rice bran and other accessories added too much, excessive nutrition, mycelium aging faster, the fruit body did not grow, mycelium began to age and shrink, causing flow ear. 3 High temperature and heavy rainfall Water content in the bag is too high. After the mycelium grows in the bag, the nutrient is converted during the decomposition of the enzyme. The water content of the mycelium keeps increasing and the mycelium in the bag is not increased. When it is fully dried, the mycelium is poorly breathable. When it is exposed to high temperatures, it is easy for the mycelium to suffocate due to lack of oxygen and die. 4 poor ventilation, water sources are not clean. The terrain is too low and the drainage is poor. The bag is too dense with poor ventilation. Water pollution causes fruit body infections. 5 Harvesting is not timely, when the ear eight minutes cooked and timely drying.

In the process of black fungus cultivation must be reasonable control, the so-called three minutes seven points. Be sure to understand stem long hyphae and wet long ears. Dry, wet, dry and wet. Look at the watering of the sky and look at the quantitative meaning of the ear. Do it in a preventive manner to improve the production and quality of black fungus.

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