Dear Orchid experts, could you help me figure out a couple of problems plaguing my orchids?
Last summer I had an infestation on a couple of my plants. The pests looked like very tiny brown-red-ish specs, needle tip size. They crowded the leaves and the places around which they were most numerous developed brown spots. I got rid of them by wiping leaves with paper towel soaked in neem solution (from azamax) several times and rotating the treatment by spraying the plants with Spinosad in a span of a few weeks. Some orchids recovered, dropped the leaves and grew new ones. Others din't.
One orchid that still bears the signs of the infection also developed some dark callus-like growths in places:
This particular Orchid suffers the most.
This orchid still shows spots where the plant was "bitten" but has no calluses:
This orchids pseudobulbos are brown, and have been like this for a few months. Most of the leaves are still ok and it is developing some growth. What is happening here?:
Thank you in advance.