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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

An Ask Extension Expert Replied June 18, 2026, 10:20 PM EDT

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