How to effectively prevent and control contaminating fungi in Gastrodia elata cultivation

1. When cultivating fungal wood, carefully inspect the fungal branches and fungal logs. Contaminating fungi prefer saprophytic life, so fresh wood that is not decayed and free of mold should be selected for cultivating fungal logs, and the cultivation time should be shortened as much as possible. If contaminating fungi are found on the fungal logs, scrape them off if the infection is light and sun-dry for 1-2 days; discard them if the infection is severe.

2. Inspect the Gastrodia elata seeds used. If mold infection is found, scrape it off and sun-dry if the infection is light, or disinfect the affected area locally with 75% alcohol, carbendazim, etc. before use. Any Gastrodia elata seeds that are bruised or rotten must be discarded.

3. The filling material must be packed firmly, and never leave any gaps. Strengthen the management of temperature, moisture and air, control the humidity inside the pit, and maintain a dry environment, and mold occurrence can be reduced.

4. The Gastrodia elata pit should not be too large or too deep. Cultivating Gastrodia elata with fungal wood in relatively small quantities is one of the best cultivation methods for preventing contaminating fungal infection.

5. Increase the amount of Armillaria mellea used. The more fungal branches or fungal spawn are placed, the faster the fungus grows, and this can inhibit the growth of other contaminating fungi.