1. Young ears are wilting: When the fruit body grows to a diameter of 3 to 4 cm, the ear piece shrinks and does not stretch, and the color changes from white to yellow, stopping growth. The reason is: 1 when the medium is prepared, the water content is excessively dry, and the moisture in the bag is only supplied to the fruiting body for about 20 days in the middle period, and the water cannot be continuously supplied, so that the young ear lacks water and sallows. 2 ventilation and oxygen deficiency. The young ear has a large oxygen demand. In the autumn and winter, in order to keep the door and window tightly closed, when the indoor carbon dioxide concentration exceeds 0.1%, the young ear is also damaged and yellow.
2, Heidi: Heidi often because the room temperature exceeds 30 °C in the stage of bacteria, the temperature of the bacteria, the temperature of the heap rises sharply, the hyphae are difficult to adapt, secrete melanin, flow out from the mouth; or due to flaring, time delay, inside the bag The mycelium is physiologically mature, severely deprived of oxygen, and the metabolism is blocked. Although the fruit body can grow out when the mouth is flared, the ear base gradually becomes black; or it is infected by the cephalosporin, causing the black spot disease to form in the base.
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