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Measures to reduce the pollution of mushroom green mold
In the strain bottle or after sowing bacteria and mushrooms, it's common to encounter old roots, which can lead to the spread of green colonies. These colonies not only compete with the mushroom for nutrients but also release toxins that hinder mycelium colonization and fruiting body development. Once the mushroom has been produced, its root system becomes more vulnerable to damage. When the culture block is infected, the green mold grows rapidly, leading to poor growth or even death of the mushroom mycelium and fruit bodies.
To minimize the risk of green mold contamination in mushroom cultivation, **China Pesticide Network** shares some effective control methods:
1. **Prevent excessive use of formaldehyde** during the inoculation process. Excess formaldehyde can convert into formic acid, creating an acidic environment favorable for green mold. Apply lime powder around the culture room and promptly remove any contaminated material.
2. **Regularly inspect the strains** after sowing. If green mold is detected, immediately remove the affected area and replace it with new spawn to prevent further spread.
3. **Choose a low-temperature and dry season** for cultivation, as this reduces the chances of infection. During the hyphae healing phase, cover the blocks with plastic film, limit ventilation, and lower the temperature. Avoid lifting the plastic too early, as this can expose the mushrooms to bacterial invasion during recovery.
4. **Treat infected areas** with 40% sulfur suspension or 50% carbendazim wettable powder diluted to 800 times. These treatments help control the spread of green mold effectively.
By implementing these preventive and corrective measures, growers can significantly reduce the occurrence of green mold and ensure healthier mushroom production. Always maintain good hygiene practices and monitor the growing environment closely to keep contamination at bay.