Orchid

I have raised orchids for years I have an Coel. Orchideengarten Joachim it is grown under lights, fans and humidity of 60%. Just recently just one leaf have developed this on it, does not seem to be spreading, but I…

Sticky substance on Orchid

I have several Phalaenopsis Orchids. One has a sticky substance on the bottom side of the leaves; can you tell me what this is? It is blooming and has also produced new leaves. None of the others have it. Thank…