make sure it is in a bright place, warm and humid....as I said this is an equatorial plant and if humidity and light is low it is affected....if you put this outside in a shaded tree since the Texas humidity is great at this time of year....
There is also a bacteria and fungi infestation from the roots to the bulbs and up to the leaves. You need to bring out the big guns...it is being attacked fast. Gramm leaves just don't drop that fast since they haven't tasted the cool breeze yet in your environment.
I hope you are able to save this poor baby.
---------- Post added at 10:45 PM ---------- Previous post was at 10:39 PM ----------
I got this link from Leafmite.
I hope this gives you information on how to combat what is ailing your plant.
http://www.houstonorchidsociety.org/...ySueBottom.pdf