Looking at this plus your outdoor Phals. losing flowers on spikes, I wonder whether all this may be due to thrips insects in your garden. They are a known problem in Florida. The Phals. have that appearance, and your description of what is happening to your Catts. also sounds similar.
If you go to Motes Orchids and sign up for the newsletter, you will receive monthly updated about what to do for orchids growing in Florida. He usually addresses thrips and other insect pests at the appropriate seasons.
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