My phalaenopsis have done all right in the past. But now they have
stopped developing new leaves for some six months and the existing ones
do not look well. While they are deep green, they have secreted
something that looks and feels like a water-clear, dry varnish that is
spread out very thinly and in patches, mostly on the top surface, but
also underneath. There are also a few brownish scales, some roundish.
Any idea on how I can bring the plants back to life? Should I wash the
leaves, and if so, with what? Is lemon juice a possibility? Should I
repot them? Thanks in advance for advice.