Ginseng Yellowing Leaves

My ginseng seedlings have yellow spots on the leaves that seem to be getting larger. They have not wilted however. What is this an what should be done?

The most likely cause for the yellowing leaves is too much light. When ginseng seedlings get too much light they drop their leaves prematurely and start their winter rest long before winter. Do check that the pH of the soil is between 5.5 and 6.5 since the wrong pH could make the seedlings die. Another potential problem could be the presence of needletree material in the mix. This seems to support the growth of fungi that attack and kill ginseng.