What to do if the leaves of black orchid turn yellow

1. Place in a cool and ventilated place

(1) Specific reasons: If the plant is exposed to extremely strong light for a long time, especially when the temperature is very high, the leaves will easily turn yellow after being sunburned.

(2) Solution: Place the plant in a cool and ventilated place for a while. After the plant has almost recovered, you can slowly expose it to light. The light needs to be diffused, not too strong.

2. Scientific and reasonable watering

(1) Specific reasons: Too much watering can cause root rot, or a large amount of water remains on the leaves, which can easily cause the leaves to turn yellow.

(2) Solution: Do not water too much at one time. Do not continue watering after watering thoroughly. In addition, do not splash water onto the leaves, and pay attention to ventilation to enhance evaporation.

3. Do not fertilize frequently

(1) Specific reasons: Too much fertilizer or too high a concentration can easily cause fertilizer damage. In addition, if fertilizer is unevenly applied or fertilizer gets on the leaves, they may also turn yellow.

(2) Solution: Do not fertilize too frequently. Spread the fertilizer evenly. Also do not get fertilizer or water on the leaves.

4. Place in a warm place

(1) Specific reasons: In winter, when the temperature is extremely low, frost damage may occur and the leaves may turn yellow.

(2) Solution: In winter, move the plants indoors or to another warm place where the temperature should not drop below zero degrees.

5. Spraying

(1) Specific reasons: When the environment is not suitable, diseases are likely to occur and leaves are likely to turn yellow.

(2) Solution: Remove the infected leaves and then spray the leaves with pesticide.