What is the reason why orchids start yellowing from their roots

Orchid yellowing from the root is generally stem rot or root rot, many are due to improper watering or plant material is too fine, high temperature and humidity caused by diseases, there are many aspects of orchid culture need to pay attention to, then, orchid root yellowing how to do? The following is to introduce the causes and solutions of the yellowing of orchid roots.

1. The reason for the rotten roots of orchids: it is generally caused by excessive watering, inappropriate soil quality or lack of sunlight. When the rotten roots of orchids are found, they should be treated in time. First, the orchid plants will be dug out of the pot to remove the soil.

2. At this time, you can cut off the rotten roots with scissors (the rotten roots must be cut off completely, starting from the upper part of the rotten roots), and then rinse the roots with clean water.

3. Then soak the remaining orchid root in 0.1% potassium permanganate solution for 4 minutes, or coat the wound with charcoal powder or sulfur powder and leave it in a shady and dry place for about 1 day.

4. After the root is dry, the orchid is planted in the sterilized river sand. Orchid farming requires that the soil must be breathable, so sand is generally used.

5. You should water enough just after planting, and then you don't need watering within a week. Just sprinkle some water on the leaf surface. Under the condition of keeping the temperature of about 20 degrees Celsius and semi-shade, new roots can sprout from the stem plate in about 30 days.

Tips

Planting can also be treated with acetic acid or rooting powder, which can promote the germination of new roots. When the new root grows to about 10 cm, it can be replanted with new culture soil.