Knowledgebase
Boxwood issue #935815
Asked June 17, 2026, 9:12 AM EDT
On several mature boxwood, I am noticing dieback. Trying to confirm if it is boxwood blight and what to do next. Foliage is intact on majority of plants, but wondering if I just trim back what is dead and spray with copper fugicide (or somethign better?) and attempt to manage it.
District of Columbia County District of Columbia
Expert Response
Thanks for sending this in. Some possibilities:
https://mda.maryland.gov/plants-pests/Documents/Volutella%20Blight-MD.pdf
https://mda.maryland.gov/plants-pests/documents/boxwood%20blight%20emerging%20disease.pdf
Sending photos for a consult for determining what this is. Expect follow-up!
Kate McLynn, Extension team volunteer