Crown Rot
I know this is late, it might help someone else with the same symptoms. Use an eyedropper or a pipette with a squeeze bulb. Add a few drops of Physan 20 to the area of rot. I use it on my Phalaenopsis, Catts, Brasso's, Phaps and Catasetum when I have a problem.
It will kill the fungus and disinfect the plant and medium. It will not hurt the plant. You can also add 1 tsp. to a gallon of water with your fertilizer and water your plants with it once a month as a preventative. I use it on both semi-hydro and the phals I have in moss. I usually wait until spring so I have root and leaf growth before repotting into semi hydro. I grow under lights. Hope this helps.
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Hybrid Mode
