my young Meyer lemon tree has been growing something I though was bark. However it is not bark but brown spots with tiny white dot in the middle. They come off easily as you can see some of them on my fingers when i was holding my worstly infected branch:
Those white dots are spreading to other branches and leaves. And it is probably deadly because leaves of my worstly infected branch are yellow and dead. I don't know if it is related to this but I had 4 lemons growing and 3 of them fell off during last week. Is this really some disease? And if so how to cure it? I've been looking over the internet but couldn't find anything.
Thank you for your help!