Our neighbor has a tree that was damaged in a storm (several branches broken...
Our neighbor has a tree that was damaged in a storm (several branches broken and hanging from the tree). On those broken branches are several areas that look like they are covered in a very large web (larger than the size of a football/basketball). The leaves in the web are dead. There are several other areas of the tree not damaged that also have those webs, some smaller but they get larger and more and more are appearing. The leaves in the webs on the tree that is not damaged are also dead. I haven't been able to find anyone who know what they could be.
Hennepin County Minnesota
Thanks for your question.
This is the time of year that we begin to see web worm activity in many different kinds of trees.
Even though this tree has been damaged in a previous storm, this webbing is not a result of that damage.
Here is a link that describes the noticeable, often unsighty and mostly harmless activities of fall webworms:
I hope this is helpful. Please contact AaE again if you have further questions.