Geoff and all,
First, I'd like to thank you for hanging in there with me. This AM I tried scraping the raised bumps off without success. When I probed the center, there is definitely healthy tissue in there. Under a magnifying glass there is no sign of scale or insects. I emptied the bark on a piece of paper and still could find nothing unusual in the potting medium. Do you think I should just treat with a insecticide? I am totally stumped. I know this is not the time to repot catts but maybe I should just cut the affected leaves off, wipe with peroxide and then repot.
Today is D Day. I'm determined to Diagnose the problem !