My orchids collection is vast. they used to have lots of flowers. When the rains came, there were very few flowers, and those that came out lived only shortly. Now, I see some white spots on the leaves, and even the blooms dry and the flowering is aborted. It has been sunny, and I expected the blooms!
My orchids are out in the sun. The white spots look like scales. No, they have not been over-watered because I have not changed the routine.