The leaves of orchids turn black. What's going on?

First, caused by exposure to sunlight

Reason: when the orchid is growing, it should not be exposed to strong sunlight, especially in summer, if it is not shaded at noon, the leaves will turn black after sunburn.

Solution: first cut off the blackened leaves and transfer them to a place where the sun is weak, so that the plant can recover slowly.

Second, infection of germs

Reason: when the leaves of the plant are infected with germs, if they are not prevented as soon as possible, some black spots will grow on the leaves and will gradually turn black.

Solution: to find out what kind of disease is infected, we should quickly spray some medicine, from the root cause to improve the solution. And in the maintenance of a lot of windows, and simple disinfection.

Third, too much watering

Reason: if it is watered too much, its leaf tip will turn black and spread to the inside, so it should be solved as soon as possible.

Solution: first cut off the black leaves, water it with less water, and get as much air as possible. Also use mancozeb to irrigate roots and spray diseased leaves properly.