Hey folks, anyone have any guesses what’s up with these two shimpaku juniper? Their roots haven’t been touched since spring 2020. They grew well last year but have developed this discoloration recently. We did have a freak snowstorm in February, but my many other juniper are not showing any issues.
Is it spider mite damage maybe? I can’t get any smears on the paper test but I’ve been hosing it down with water recently so maybe they are mostly gone.