First post so a big cheer from me to you guys :)
I have what I think is a Satsuma tree (fruited about 3 yrs ago but
nothing since), and brownish blobs have appeared on the leafs.
Admittedly, I noticed them last yr but they were few and far between.
This time however, there are much more particular towards the base of
Here is a picture which better helps
Any ideas what this is?