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What are the key points of autumn management techniques for Gastrodia elata

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After the beginning of autumn, attention should be paid to keeping warmth and reducing humidity in the morning, evening and at night, so that the humidity of the culture material gradually drops to 40%-50%. As the temperature falls, the Gastrodia elata boxes should be moved indoors promptly so that the Gastrodia elata can continue growing for a period of time. When harvesting Gastrodia elata, the humidity should preferably be 30%-35%, so that the Gastrodia elata grows well in the boxes and the yield is also high. During the growing period of Gastrodia elata, infection by mold must be prevented. Once green mold, red mold and other miscellaneous fungi infect the soil layer or the boxes, a thin layer of Bordeaux mixture (copper sulfate, quicklime and water in a ratio of 1

After the beginning of autumn, attention should be paid to keeping warmth and reducing humidity in the morning, evening and at night, so that the humidity of the culture material gradually drops to 40%-50%. As the temperature falls, the Gastrodia elata boxes should be moved indoors promptly so that the Gastrodia elata can continue growing for a period of time. When harvesting Gastrodia elata, the humidity should preferably be 30%-35%, so that the Gastrodia elata grows well in the boxes and the yield is also high.

During the growing period of Gastrodia elata, infection by mold must be prevented. Once green mold, red mold and other miscellaneous fungi infect the soil layer or the boxes, a thin layer of Bordeaux mixture may be sprayed (with copper sulfate, quicklime and water in a ratio of 1:1:140; dissolve 1 part copper sulfate and 1 part quicklime separately in water, pour the copper sulfate solution into the lime milk, stir evenly, and add water to 140 parts), or a little 0.1% thiophanate-methyl solution may be sprayed lightly, and the mold can then be killed or inhibited.

Nematode infection of the culture material must be prevented. Nematodes consume the culture material very severely and can eventually turn it black, affecting the normal growth of Armillaria mellea and Gastrodia elata. The prevention method is to avoid using natural water to spray the culture material of Gastrodia elata as much as possible. Rat poison should also be scattered in or beside the pits to eliminate rats, and measures should be taken at the same time to control ants and mole crickets.

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