1、 Root rot

Reason: proper watering and fertilization are required during the maintenance of crab claw orchid. Once the dosage is not paid attention to, it will lead to root rot, affect the transportation function, it is difficult to supply water and nutrients, and the leaves will turn red

Solution: usually pay attention to control watering and fertilization, dig out the plants, check the roots, cut off the rotten roots, and re cultivate and maintain

2、 Alkaline soil

Reason: if the soil is not changed for a long time, the soil will be alkaline, the plant growth will be affected, and the leaves will turn red

Solution: if it is found that the soil is not dealt with, it is necessary to replace the soil in time and replace it with loose acid soil

3、 Low temperature

Reason: if the leaves turn red in winter, it is likely to be frostbite

Solution: pay attention to keep warm in winter, not too cold, and the surrounding growth temperature should be kept at about 10 degrees

4、 Improper illumination

Reason: if you keep it in a place with strong light, the leaves will turn red under the sun burn. It is not only the sun exposure, long-term absence of sunlight and in a dark state, it will also cause the leaves to turn red

Solution: during maintenance, the light shall be well controlled. When there is no sunshine, the light shall be seen in time. When the light is too strong, shading measures shall be taken

5、 Lack of nutrients

Reason: long term non fertilization will also lead to nutrient loss, especially the lack of phosphorus fertilizer, which will lead to red leaves

Solution: timely supplement phosphate fertilizer according to the needs of growth to meet the needs of nutrients