Boxwood blight? - Ask Extension
I have a mature boxwood hedge which is showing marked yellowing in spots this spring. My brief research suggests it might be due to boxwood blight. I ...
Knowledgebase
Boxwood blight? #873443
Asked June 17, 2024, 1:07 PM EDT
I have a mature boxwood hedge which is showing marked yellowing in spots this spring. My brief research suggests it might be due to boxwood blight. I tried to attach photos, but apparently the website cannot accommodate them due to file size. Can you make and recommendations as to how to fully diagnose and treat?
Marion County Oregon
Expert Response
Dear Cathy,
Thank you for contacting us about your boxwood. The blight you refer to generally causes identifiable signs as shown in the photos in the attached article. Please refer to those.
There are several possible causes for yellowing leaves but it's not possible to diagnose without an inspection or at least photos. Perhaps you can try sending photos again showing a close-up of the affected leaves as well as the entire plant.
Another alternative is to take photos and a sample twig/leaves to the Marion County Extension Office for closer inspection. The Help Desk is normally open from 9 am to 1 pm, Monday thru Friday. The address is:
1320 Capitol St NE #110, Salem, OR 97301
Garden Help Desk: 503.373.3770
Please let us know when the yellowing first occurred, whether the affected leaves are dropping from the plant, and how many plants are affected. We will then be happy to try to assist you.
Thank you for contacting us about your boxwood. The blight you refer to generally causes identifiable signs as shown in the photos in the attached article. Please refer to those.
There are several possible causes for yellowing leaves but it's not possible to diagnose without an inspection or at least photos. Perhaps you can try sending photos again showing a close-up of the affected leaves as well as the entire plant.
Another alternative is to take photos and a sample twig/leaves to the Marion County Extension Office for closer inspection. The Help Desk is normally open from 9 am to 1 pm, Monday thru Friday. The address is:
1320 Capitol St NE #110, Salem, OR 97301
Garden Help Desk: 503.373.3770
Please let us know when the yellowing first occurred, whether the affected leaves are dropping from the plant, and how many plants are affected. We will then be happy to try to assist you.
