Help leaves blackening!!!!

[Ross]

Sorry to see this so late, but I doubt this is a fungus or any other disease. I suspect sun damage. Since you are in Florida and this is summer, the sun intensity is really high. This looks like classic sunburn of orchid leaves to me. It will continue as long as the plants are in the full sun. You need to move them to a shadier location (keep in mind the full sun in Michigan is not the same as full sun in Florida) (and shade in Florida is not the same as shade in Michigan) and hope for the best. The black indicates completely burned foliage which will never change back to green. Now I could be wrong, but in this case (I've seen it first-hand) I doubt it. I am confused that only the Cats appear with this symptom, however. Could they be in slightly different light?