Why Do Oyster Mushrooms Die Soon After They Emerge?

Why Do Oyster Mushrooms Die Soon After They Emerge?

Dead mushrooms are a common issue in large-scale cultivation, particularly in older mushroom houses. The causes of dead mushrooms can vary, with some remaining unclear. Generally, there are three main types of dead mushrooms:

1. Dried Mushrooms: These mushrooms appear dry and yellow. When pinched, no water is released, and they show obvious signs of water deficiency. This is typically caused by low humidity, improper ventilation, direct exposure to sunlight, or insufficient water content in the growing substrate. Ensuring proper water management can help prevent mushrooms from drying out.
2. Wet Dead Mushrooms: These mushrooms are waterlogged and may turn yellow or rot. When pinched, excessive water drips out. This is usually a result of over-spraying, which saturates the mushrooms with water, depriving them of oxygen and suffocating them. Inadequate ventilation or water accumulation at the mushroom base can also contribute to this issue. Proper control of moisture levels and ventilation will help address this problem.
3. Sticky Mushrooms: These mushrooms grow slowly, turn yellow, become wet, and eventually develop a sticky surface. This problem is often seen in older mushroom houses and is caused by bacterial infections. These bacteria, which tend to overwinter in the soil, can be spread when water splashes onto the mushrooms during spraying. Once an infection occurs, it is difficult to reverse. The use of targeted antibacterial treatments can help clear the yellowing and treat bacterial diseases such as macular disease and slime mold.

Understanding the causes of these issues and taking corrective measures in water and ventilation management, as well as using appropriate treatments, can significantly reduce the incidence of dead mushrooms in mushroom cultivation.