Identification and Control Methods of Physiological Diseases of Reishi Mushroom

Due to the action of abiotic factors, the physiological metabolism of reishi mushroom is often disrupted, leading to disease.

Symptoms After physiological diseases occur, deformed mushrooms grow, and the mycelium stops growing or grows poorly and shrinks, and excessive vegetative growth can also occur.

Causes During cultivation, improper management leads to poor nutrition of the mushroom body; the temperature in the cultivation room is too high or too low, and ventilation is poor; the water content of the substrate is too high or too low, or the pH is unsuitable; lighting is inconsistent; the bed contains excessively concentrated harmful gases; pesticides and growth regulators are used improperly. If the mycelium has not matured and soil is covered too early, and the nitrogen proportion in the substrate is too high, excessive vegetative growth of the mycelium is likely to occur.

Control Methods

(1) Strengthen cultivation management, ventilate in a timely manner, maintain appropriate temperature and humidity, and pay attention to environmental sanitation.

(2) Select high-quality spawn; prepare the substrate reasonably, requiring an appropriate nitrogen content. Commonly used wheat bran or rice bran generally should not exceed 20%, so as to avoid excessive vegetative growth of the mycelium; cover with soil and produce mushrooms only after the mycelium has matured.

(3) Spray the bed with 1%-3% lime water, and after the surface dries slightly, cover it with tree branches and other covering materials. This can also prevent excessive vegetative growth of the mycelium.

(4) Select suitable pesticides and growth regulators to prevent pesticide poisoning.