I'm not sure. You can take off all those leaf remains and try to locate the rot and then cut off the rotted area. You had to do it the same day this yellowing started. If one leaf remains, the chances are ghostly. :(

Matthews, pollinating would not put stress on a phal of such extreme. It would be nice if you could take a :photo: or 2 to zero in on the bothersome area. It is possible to advance over an ailing phal and bring back to health...ones that I have found extremely forgiving, but it really depends on it's current condition.

I will try to post some pictures in the next few hours.

Edit: Pictures are coming!

Here are the pictures:

The bottom picuture is a Phal with white roots. Does anyone know what it is? Thanks!

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I can tell you, that your plants have a good case of sunburn (that's the classic photo). Roots look sunburnt also. You might move plant to a shadier location for a while. Leaves will not get better, but new ones will be greener. I just didn't think this sounded like any case of rot I ever experienced.

I don't see anything suspicious. Looks like these roots grew without light, for example, in non-transparent pot. And then you took them out.

Hi , My opinion is crown rot . You can pour straight peroxcide in the top . Use a tissue to remove it when it stops fizzing it reverts back to water when done .
Sometimes the plant will grow a basal keiki a plant from the base of the old one . It takes a long time . keep top of the plant dry and out of direct sun . It might produce a keiki from the spike .
I looked at the bottom picture it is hard to tell about the roots , most Phals . do have light colored roots unless they are stained from bark or are old or dead . If rotted they will be squishy . Hope this helps a little . Gin

The Phals roots feel healthy when I touch them, but the only thing wrong is the colour. I have all my plants under 2 fluorescent lights which is not too much sun. I just set up another area with 3 bulbs because I am expecting some new Cattleya's.

All I can say is it is not sunburn because I do not have them in a high sun area. I am thinking that Gin is right with the crown rot. I am going to go buy some peroxcide.

Thanks for all the help!

Matt, I has one go down like this about 2 weeks ago. I pulled off the rotten leaves, kept it watered and out pop a new tiny leaf. It's about 5 days old now. I didn't do anything 'cept keep the roots moist.
Good luck with your orchid :)

I will try, Thanks!