Ptychogaster or Snow Mold

[JennS]

On nearly all of my plants that are on the ground (no orchids are directly on the ground) and some that are not this stuff appears that I have researched and determined to be called snow mold or ptychogaster. Anyone ever had issues with this on their orchids? It looks like webbing almost and usually starts around the drainage holes in the bottom of the pot. Any idea on how to ward this stuff off or get rid or it if it appears. I think it took the life of a new evergreen dendrobium that I got as a gift so now I am not too happy with this suff!