Quote:
Originally Posted by Orchid Whisperer
I am concerned this has a disease called southern blight or collar rot. Others may have a different opinion . . .
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In my experience, southern blight generally comes with a distinct cream color on the base of the plant and leaves, which I'm not seeing in this picture.
To me, it looks like an aggressive root rot that has gone on for a long time. Unfortunately, this plant is in very bad condition, and it may be difficult to save.
First steps would be to cut off any obviously dead roots and leaf material, then spray the remaining plant with hydrogen peroxide to let it sizzle away any fungus. Let the plant dry for two days or so, then try the "sphag and bag" method. Put a damp paper towel or some moist sphagnum moss in a zip-lock bag along with the plant, place it in a shady but warm spot, and leave it alone for a while. Hopefully the humidity in the bag can stabilize it long enough for it to grow new roots.
If the center leaf (the crown) falls out, though, I would say this orchid is, sadly a goner.
But, if this happens, read some of the articles about phalaenopsis care on this site and others (
start here!) and try again with another plant!