Clusters of leaves falling from oak tree - Ask Extension
We have clusters of leaves falling from our oak tree. Some are green and healthy looking, and some are brown and dry. When you look at the tree ther...
Knowledgebase
Clusters of leaves falling from oak tree #765070
Asked August 01, 2021, 3:27 PM EDT
We have clusters of leaves falling from our oak tree. Some are green and healthy looking, and some are brown and dry. When you look at the tree there are clusters of leaves at the end of most branches. There are some fuzzy growth at the junction of the veins on the back of the leaves. This has happened in previous years, but seems much worse this year. The tree seems healthy except for this. Thanks
Denver County Colorado
Expert Response
There are many possible causes of the problem you are experiencing with your oak tree, either biotic or abiotic and it is impossible to diagnosis the problem with pictures. I would recommend you take samples to the Jefferson County Plant Diagnostic Clinic. Please refer to the link below for details on how to proceed.
https://jeffco.extension.colostate.edu/horticulture/clinic/
Another option is to contact a certified arborist to provide an on-site consult of the problem. The link to the International Society of Arboriculture (ISA) is included.
