Standing Juniper shrub/tree disease

Asked October 9, 2019, 10:53 AM EDT

This is the 2d Juniper shrub I've planted, stands about 3 feet tall and 2 +/- feet wide. It is browning out from the linside out. I tried to Google looking for a cause and read somewhere that it could be spider mites and could spray soap water to try and stop that. Doesn't seem to be working. I'm afraid I'm losing this one too. Any suggestions on what it is and if a treatment is available?

Goodhue County Minnesota juniper horticulture

3 Responses

Without a photo, I can't really figure out what is wrong with your juniper. Even with good quality photos, it would be hard.

Besides spider mites, some other things to consider are diseases such as Cercospora blight or abiotic causes like winter injury or construction damage. Check this diagnostic page:
https://apps.extension.umn.edu/garden/diagnose/plant/evergreen/juniper/

You might also want to send a sample into the plant disease clinic:
https://pdc.umn.edu/submit-sample

Thank you for your response. Following reading that I took a closer look and believe it is the Cereospora blight. I'm too late to treat it this year but if I treat it next year as recommended, will the shrub/tree recover or will it likely remain in it's damaged condition?

Thank you.

As long as there is some green, there could be regrowth. But branches that are entirely dead won't recover.

Cercospora is difficult to diagnose. Even though you believe that is the problem, I'd still send a sample into the diagnostic clinic to verify.