This fungus affects the leaves of the tree, forming black spots on the upper surface.
Black fruiting bodies may subsequently appear on these spots which will then cause the leaves to drop.
> Read also: all you need to know about maple
Solution against maple black spots
Pick up and burn the leaves to remove all traces of this fungus.
You can also put them for composting.
Smart tip about black spots on maple
Chemical treatment is not necessary, so let's avoid contaminating our earth