My grandmother has given me some orchids in the past several months, including a large Vanda. I haven't had any problems with any of the others, but I don't have the slightest bit of experience with a Vanda, and I think it is going downhill quickly...
I have attached a few pictures so you can see what I mean...
Is there ANYTHING that can be done to save what is left of it?
Hang it is a semi-sunny, warm window facing South or closest to it. Mist the roots daily with a solution of water and SuperThrive or KLN. Roots will come back, slowly because we are going into Winter. It will probably bloom in the Summer.
Poor Vanda! Lucky that it still has some leaves!
I think you need the 'spag'n bag' treatment- put the lower half of the plant in some moist spag moss and seal it in a plastic bag. The bag needs to be opened every couple of days for ventilation, then re-sealed.
What was this vanda growing in?
Keep us posted!
Oh dear, don't use hormones yet, that'll be more of a last resort since they can stress the plant. I think the sphag-in-a-bag method might work, just try it first, if it doesn't try other methods.
As there are no roots at the base of the fan, it looks like the vanda may be a topping. Roots that are showing are stunted; also looks like main growth has suffered from dessication and rot.
I agree with all the suggestions above, but add this one ... using a sterile tool, cut from bottom up an inch at a time to examine the interior of the main growth. Keep cutting until the cross-section is lush green. Cauterize the wound, then try root hormone. Vandae need lots of light and lots of water, but don't forget air movement or things will rot.