Leaves falling off of tree in late spring/early summer

Asked June 19, 2018, 4:52 PM EDT

Hi, The leaves on my tree are falling off. The leaves at the very tip of the branches are either heavily covered with black or brown spots or have turned completely black. What could this be?

Prince George's County Maryland

1 Response

The tree looks like a type of maple and they can overproduce leaves. This looks like some leaf spots on the leaves such as anthracnose and phyllosticta.
The heavy rains and frequent cloud cover over the last couple of weeks makes plants susceptible. You may see some defoliation during high infection periods.

These leaf diseases on mature trees will not be a major problem threatening the health of the tree. No control is necessary. The best management practices involve pruning and removal of dead twigs during the winter or dry summer months. Mature trees can be thinned for better air circulation throughout the canopy. Rake and remove infected fallen leaves in the fall. http://extension.umd.edu/hgic/shade-tree-anthracnose-trees