What if the leaves of Cymbidium turn black?

The blackening of the leaves of Cymbidium may be caused by too much watering, the rotten roots need to be cut off and watered every 2 to 3 days, and the soil should be changed every 10 to 15 days to apply nitrogen fertilizer. If the light is too strong, it should be carefully maintained in a cool place, diseased branches and leaves should be treated in time when suffering from diseases, and insecticides should be sprayed to control diseases and insect pests to promote the leaves of Cymbidium to regain its vitality.

1. Root cutting to control water

The blackening of the leaves of Cymbidium may be caused by stagnant water and rotten roots. it is necessary to remove the rotten roots from the soil and replace the soil to control watering and careful conservation. It can be watered every 2-3 days to keep the soil moist.

2. Change soil and control fertilizer

Although it is said that the orchid needs to provide sufficient nutrients, the amount of fertilizer should not be too much each time, otherwise it will blacken the leaves of the orchid and reduce the ornamental value of the orchid. We can change the soil for the orchid and apply nitrogen fertilizer every 10 to 15 days to make the orchid recover gradually.

3. Shading and sunscreen

If too much light will blacken the leaves of Cymbidium, then it is necessary to move the orchid to a shady place for maintenance, provide moisture to the orchid in time, and do a good job of shading and sunscreen.

4. Disease prevention and control the leaves of Cymbidium have blackened, in addition to the usual maintenance problems, it may also cause diseases. It is necessary to improve the growth environment of Cymbidium, strengthen its management, and deal with diseased branches and leaves. Spraying chemicals can gradually restore the leaves of Cymbidium.