What is the sticky stuff on my orchid? What is Honeydew?
Sticky stuff (also known as Honeydew) is often found on the spikes of orchids. Generally, it is a sign of a happy plant. Some people prefer to remove honeydew because they experience some molding if they are kept under very humid conditions, this is entirely at the discretion of the grower.
In some cases, spider mites and other stresses can cause a plant to exude a sticky subtance from the leaves. Check thoroughly for spider mites and other critters by tapping the leaves over a piece of white paper, looking for tiny webs and even tinier bugs.