Hi: I have a potted Meyer Lemon that I moved outside last month. It has developed white speckling on the stems, petioles and leaves. Petiole and stem spots are slightly raised. Anyone know what it is? cheers
Stress? If it gets any worse or spreads to other leaves, you will know it is more than just something aesthetic.
I don't know German language but am guessing that Gollum says that it looks to him like a very small insects.