I have a Dracaena Marginata which started to have some white spots. They turn out to be some kind of "mold"
which can be removed when swapping the leaf and then leaves some discolored spots
They usually appear when the leafs get yellow (because of it, or because I have forgotten to water for too long) and seem to be more present at the base of the leaf.
What is this?
And more importantly: is it a problem for the plant? (minor issue, though it is a gift from my children) or for me? (major issue, and death sentence for the plant)