In my opinion, cut off this growth, dab with cinnamon, and let it dry out a bit. I've never had problems with water inside the leaves of oncidium alliance orchids. When this type rot happens, it has always been too muh water on the roots. I know. They like to be wet. That's what the books say but I think that wet and moist are two different things. Moist is when it will dry quicklyafter the roots have taken up all the water they need and dry off waiting for more. Wet is when the excess water does not dry off quickly enough and bacterial/fungal organisms start to take hold as in phal crowns staying wet at night especially when it is cool. Ill post a pic of one of my rescues that took one day to turn ugly with rooting leaves. I watered it too quickly instead of letting it dry off a bit. If you are going to water then make sure you have a good air current blowing across he plant and pot. Wter during the morning hours giving the pot time to dry off. Also just a personal opinon about coconut husk media.I don't like it especially with onc alliance orchids. It is too fibrous and harbors too many bd organisms inside the fibres. Just my opinion. I've seen time and time again where orchids grow well in it until it starts to break down and wham!!! Rot. Anyway, your pbulbs will produce new growth in about a month or two. Lots of light and warmth with a good breeze blowing across the plant and turn it weekly. The growth comes from the energy stored in the pbulbs alone. They grow for quite awhile using this stored energy. Starches and sugars. I've had bulbs that were shriveled quite a bit and still here comes a couple new shoots. Patience grasshopper. In time they will produce. Moist! Not wet. That's the key.
Last edited by james mickelso; 04-05-2014 at 11:40 PM..
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