Identification of cocoon on White Oak - Ask Extension
What moth or caterpillar cocoon is attached to white oak?
Cocoon is located on white oak in Demo Garden at Baltimore County Agricultural Center
Knowledgebase
Identification of cocoon on White Oak #329185
Asked June 06, 2016, 3:48 AM EDT
What moth or caterpillar cocoon is attached to white oak?
Cocoon is located on white oak in Demo Garden at Baltimore County Agricultural Center
Baltimore County Maryland
Expert Response
This is a type of gall, which is really just a tissue swelling. There are many kinds. This one is called a wool sower gall and it is specific to white oak in the spring here.
Here is a page from N.C. Cooperative Extension about them: https://www.ces.ncsu.edu/depts/ent/notes/O&T/trees/note05/note05.html
There is nothing you need to do.
cm
Here is a page from N.C. Cooperative Extension about them: https://www.ces.ncsu.edu/depts/ent/notes/O&T/trees/note05/note05.html
There is nothing you need to do.
cm
