1、 The light is too strong
Reason: light is very important for its growth. But if it is exposed to the sun for a long time, the plant will be sunburned. Because the light is too strong, the water on the leaves evaporates too fast, so there will be yellow leaves p>
Solution: if you are yellowed, you must control the light. Reduce the time in the sun and reduce the light intensity. It is necessary to block the strong light at noon and in summer. Move the plant to the astigmatism place and maintain it for a period of time before it can recover p>
2、 Lack of moisture
Reason: Phalaenopsis likes a slightly humid environment and is not drought resistant. If the air humidity is too low and the soil is too dry, the leaves will slowly turn yellow, which is the common dry yellow situation, and the leaves will gradually become thinner p>
Solution: if it is caused by drought and yellow, the yellow leaves should be cut off. Also add water, water as soon as possible to make the soil moist, and strengthen ventilation after watering, so as to alleviate the phenomenon of yellow leaves p>
3、 Root rot
The reason is that once the root is rotten and yellow, the leaf will be rotten and yellow. The roots cannot absorb nutrients, and the leaves will turn yellow due to lack of nutrition p>
Solution: if the root system is rotten, remove the pot and trim the rotten root. After pruning, disinfect, dry the wound, replace it with new soil and replant it. In addition, pay attention to prevention in the later stage. Use soil with good drainage performance and appropriate amount of watering to avoid root rot p>