Keep me updated with tree and landscape care tips from.

Hi Hannah.

Oct 25, Oak trees are bound to lose at least some of their foliage, especially when the cool fall and winter weather arrives. But if you discover significant patches of open, missing foliage, it could be a sign of Diplodia canker, which is a fungal twig and branch disease that affects certain species of takedownstump.bars: Dec 04, loss can be a normal phenological change (leaves drop from the tree in the fall), caused by root rot, bark boring beetles, or were consumed by insects.

Observingsymptoms is the first step in understandingwhat is wrongFile Size: 1MB. Jul 18, Jul 15, #1.

We have had 2 arborists come out.

I have a fairly large Oak tree that is about 20 years old. The past three years the has begun to lose leaves in July. The tree starts thinning out and just keeps on until its almost bare by fall. My yard is full of leaves to the point that we had to rake leaves this past weekend. We have had very hot summer this year, but the Estimated Reading Time: 3 mins.

Sep 25, With time, the Anthracnose infection can spread from leaves to twigs. This in turn can cause twigs to drop. Spores of this fungus can remain in leaf debris over the winter. For this reason be sure to remove all fallen leaves and twigs from under your oak this fall, place them in a leaf bag, and dispose of accordingly.