Oyster Mushroom Cultivation Techniques: What Contaminant Fungi Affect Oyster Mushroom Cultivation?
What contaminant fungi affect oyster mushroom cultivation? What methods can be used in oyster mushroom cultivation to prevent and control contaminant fungi? Please introduce them. The contaminant fungi that appear during oyster mushroom cultivation include green mold and Trichoderma viride. The mycelium is initially white, gradually turning pale green and then dark green. This fungus is a major enemy harming oyster mushroom growth. Like oyster mushrooms, this fungus prefers to grow in...
What contaminant fungi affect oyster mushroom cultivation? What methods can be used in oyster mushroom cultivation to prevent and control contaminant fungi? Please introduce them.The contaminant fungi that appear during oyster mushroom cultivation include green mold and Trichoderma viride. The mycelium is initially white, gradually turning pale green and then dark green. This fungus is a major enemy harming oyster mushroom growth. Like oyster mushrooms, this fungus prefers to grow in slightly acidic substrates. When exposed to high temperature, high humidity, and stale air, this fungus is very likely to develop, sometimes suddenly breaking out over a large area and causing cultivation failure.
Therefore, we must keep the cultivation room well ventilated and maintain suitable temperature and humidity to avoid this situation. Once it occurs, use concentrated lime water with a pH above 10 or an alkaline solution to wash and smear the affected areas, treating it promptly and eliminating it during the spot or patch stage.
Treatment methods for contaminant fungus contamination in oyster mushrooms:
Once contaminant fungus contamination occurs in oyster mushroom cultivation, the cause must be identified and dealt with promptly. If large-scale contamination suddenly occurs during spring cultivation, first consider contamination of the substrate itself before mixing. If the contaminant fungi appear around the inoculation block or inoculation holes, consider that the spawn is impure and carries contaminant fungi itself, causing the contamination. If scattered spot-like contamination appears on the surface of the substrate, consider invasion by contaminant fungi at a later stage.
During the mycelial growth and management of oyster mushrooms, always pay attention to contaminant fungus contamination. When contamination is found, identify the cause and deal with it immediately, the sooner the better.
When scattered spots or small patches of contaminant fungi are found on the surface of the substrate, wash and smear them with concentrated lime water with a pH above 10, then use a sterilized knife to remove the contaminated substrate surface, then spot-apply concentrated lime water around the area, add fresh substrate, and spot-inoculate spawn. Also be careful to cultivate under conditions of low temperature, ventilation, and dryness.
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