Dying Dogwood. (Overlea, MD)

Asked September 27, 2017, 11:38 AM EDT

How do i rescue this once thriving tree? ~ branches are going dead ..it seems to be starting at the bottom of the branch and works its way up ~Started slowly about 3 years ago, could barely notice. Now, it's taking over the tree. ~there is a greenish-white fungi of sort on the trunk that has been around for at least 11 years plus. It and the Dogwood always got along; no harm to the tree. Please, HELP!

Baltimore County Maryland trees and shrubs disease issues trees dogwood

1 Response

Dogwoods are very susceptible to powdery mildew, a fungal disease. The disease often persists though the summer and reduces the vigor of these trees. The downward turning of the leaves of your tree suggests this is one of the problems. It is a very common problem in this type of tree. Dogwoods are also susceptible to boring insects and cankers, which can lead to dieback of the branches. Powdery mildew would require treatments starting from budbreak and regularly throughout the summer. For most people the treatment regimen just isn't practical. We recommend pruning out the dead branches. Keep the tree well watered during dry periods. That's really the best you can do. The greenish-gray growth on the branch is a lichen. There is information about lichens on the following page. https://extension.umd.edu/hgic/lichens-trees-and-shrubs