Black Mold Growing On Orchid Leaves

Question

How do I save the orchid? It is spreading.

Answer 1

Unfortunately, without seeing the issue at hand, or knowing more about its environment, I can only take guesses. There are several causes, but it might be that the orchids roots are staying wet. In nature, they grow freely between the bark of trees. This means that they are not accustomed to soils, or wet places. They do need humidity, and quite a bit of it, but they cannot remain wet. If this is the case, then it is likely fungal or bacterial rot. Treatment will depend on what it is.

For now, you might try fungicides and giving it proper care.

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

https://www.gardeningknowhow.com/ornamental/flowers/orchids/phalaenopsis-orchids-post-bloom.htm