Sadly, bacterial crown rot is one of the toughest things to get rid of. Back in the old days, some of the big growers used to use a dithane M45 paste but I believe it is no longer for sale. The tetracycline they sell at feed stores, in a paste works sometimes. However, the easiest thing to do is, when you see those evil clear patches full of bacteria, cut the leaf back past the clear area (if possible) and douse the cut with rubbing alcohol to sterilize out the bacteria. If you succeed in stopping it, the plant, as was pointed out, will often send up a basal keiki or sometimes a new leaf from the crown, depending on how far down the bacteria went. Here is a link that might be useful: The Wayward Hawaiian

Whitney Spears, Yep, suspect your little plant has a pretty severe case of sunburn. See those papery looking areas in the center of the leaves surrounded by darker green around the border? The silvery areas are burned, and will probably become sunken and turn leathery and black...the spots are probably already beginning that process. Watch the spots for a fungal outbreak, and if one occurs, cut the bad area out with a sterile razor blade and apply fungicide. Let the sunburn areas finish drying up and turning black before you cut them off. Don't cut any more than necessary, but for appearance sake more than anything, you can cut them back to good green tissue, put a fungicide on the cuts, and treat the plant as normal. The plant will eventually grow new leaves, and when you have several new leaves you can remove the old cut leaves if you desire. The roots look good, so I suspect you will have no problem saving the plant. Don't repot it while it is distressed, so be careful about watering until its back on its feet...... The little bugs.....I say no problem, but my wife has a decidedly different opinion!!!!! If yours are like mine, they come in on the plants in the fall, and reside throughout the winter, and go back out in the spring with the plants. They are like little gnats....they hatch in the potting media, and fly.....all over the house they appear.....Wife thinks company won't understand......I say most company doesn't understand a plant freak (me) anyway, so don't worry about it..... Anyway, I keep a can of cheap bug spray near the plants, and when the little critters get particularly bad, I point a spray of insecticide at the potting media. Hope that helps some. Bill

You need to lift the plastic pot out of the ceramic pot right away. It is not draining. I overwater in moss so I repot mine into phal bark I buy at Lowes. They are doing well and look happy.

OK, they don't look good. If there isn't a root coming out of the bottom of the green leaves, then as a last ditch effort you can try this. Cut out the dead steam from behind the leaves, cut about an inch below the knob under the leaves. Get some fresh sphagnum moss, soak it in water, squeeze out most of the water. Get a plastic Zip Lock bag, put in some moss (do not pack it in), and place what's left of the orchid in the bag and zip it close. Place it in a shaded place and cross your fingers. If you want to enhance the chance of it surviving, dust the bottom part of the leaves, where roots may come out with rootone. Keep in mind though that after purchasing sphagnum moss and rootone, it may not be worth the time and effort since there's no guarantee that this will work. Go to YouTube and check this out: How to propagate-Dendrobium Nobiles. About 7:30 in. The idea is the same. JMO