Dtps. Yu Pin Burgundy
On March 09, I noticed some more rotten roots through the clear plastic, and decided that I could not risk waiting any longer to repot. If the stress of repotting would blast the flower buds, so be it.
Extensive root damage
Remaining roots after trimming off dead and rotten material
When I removed the orchid from its pot, I discovered extensive root damage. Most of the roots were either dried out, or rotten. Only 4 living roots remained, and those were all shriveled and unhealthy still.
My suspicion is that the damage was caused by cold shock. My orchid shelves are next to an open window, and this season had some very cold nights. Further, the water I use on my orchids is stored in a glass tub right next to the window, so I was likely watering my phals with water that was far too cold for their roots to handle.
In the meantime, I treated the orchid with fungicide, and repotted into a smaller 4-inch pot. The orchid is now looking very scraggly and dehydrated, and losing leaves. I hope it manages to pull through. In the meantime, it has managed to open some of its flowers, which I will post about at a later date.