Prevention and treatment of Lentinus edodes tube changing color and not producing mushroom

The main results are as follows: 1. the color change of mycelium of Lentinus edodes is not only the physiological process of mycelium development, but also the sign of mycelial physiological maturity. The suitable conditions for the color conversion of the bacterial tube are as follows: the temperature is 18 ℃ ~ 24 ℃, the air humidity is 80% to 85%, there is a certain degree of scattered light, and the ventilation is good. If the indoor temperature is more than 25 ℃ when changing color, and the high temperature lasts for a long time, it can cause the bacteria tube to secrete a large amount of yellow water and pigment, and then form a thick sauce skin. The thick skin formed can isolate the air, so that the hyphae can not get oxygen and can not produce mushrooms.

Second, prevention and control measures (1) percussion. When the mushroom tube is mature, when it comes to the mushroom season, find an egg-sized stone or a wooden stick, beat evenly from one end of the tube to the other, and the tapping points are divided into two rows. Clump varieties hit 6 points, solitary varieties hit 8 points. After beating, the bacterial tube is placed in the mushroom shed, and the bacterial skin of the beaten bacterial tube is subjected to shock pressure to produce cracks, so that the air inside the bacterial tube is ventilated, and the internal hyphae are stimulated to kink quickly to form primordia. After beating, the mushroom tube comes out neatly and there is no abnormal mushroom. (2) piercing method. With a steel wire of 6mm and 8mm, pierce 3 holes at both ends of the tube, and pierce a hole vertically in the middle of the tube. After piercing the hole, hit the fungus tube, and then soak the mushroom in cold water. (3) fumigation. Concentrate the bacterial canister with thick skin in a bacterial shed. When the temperature drops to 15 ℃ at night, cover the greenhouse film strictly, put two charcoal brazier in the shed, 4 meters apart, pour diesel oil into the pot, so that the diesel fuel is fully burned. At about 10:00 the next day, when the temperature rises, turn on the greenhouse film to ventilate. This method can soften the fungus skin and produce mushrooms smoothly. (4) the method of sunshine heat preservation and bud induction. If the temperature is too low to meet the requirements of mushroom production, you can first pile up the fungus tube in the sunny place outside, cover it with film and use light to raise the temperature. When the temperature of the bacterial tube pile rises to 20 ℃, soak the bacterial tube in cold water to make the bacterial tube absorb water to reach a suitable water content, then remove the water from the surface of the dried bacterial tube, pile it up and cover the film, draw light, moisturize and accelerate the bud for 5 days, and the buds can be formed quickly. This method has a good effect on the fungus tube with thick skin and dry surface.