Posted: Yesterday at 15:13
Leaf spot, Cercospora a fungal infection.
Use a Fungicide containing myclobutanil and azoxystrobin. Apply early spring to the ground below the shrub to kill the fungus before it infects the plant. They don't kill fungus that has already begun to discolour the leaves of your privet, but they can prevent the fungus from spreading to new leaves if you spray healthy leaves.
Rake away any dead leaves or twigs beneath your shrub and dispose of them.
Prune off the infected branches and dispose of them in a plastic bag to keep spores from spreading.
Try and water the base of the plant instead of the leaves. (difficult if it is out side)