I have a small Olive bonsai that ants seems to love, they always go to that specific pot to bring their eggs in.
This Olive tree has a disease as well, last time all the leaves had white spots on it so i defoliated all of them, now the tree grew some new leaves but i can see some white spots coming back ( See Image Attached )
I tried to remove the soil but couldn't find anything special.
Any recommendation ??