Sycamore Fungus

Sycamore Fungus

Observation - Sycamore Fungus - UK and Ireland. Description: Freshly emerged Sycamore leaves with red discolouration on the upper leaf surface and white specks on the under leaf surface. Is this the initial stages of the Tar Spot fungus or something completely different?

Freshly emerged Sycamore leaves with red discolouration on the upper leaf surface and white specks on the under leaf surface. Is this the initial stages of the Tar Spot fungus or something completely different?