Black Hills Spruce Problems
We have a Black Hills Spruce that we planted 18 years ago as it was supposed to be very disease resistant. Sadly, the last two years, it has been losing its inner needles and this year basically has only the current years growth. The tree is between two Balsams that seem to be doing just fine.
Is this age? Is this disease? Is it a pest?
Thanks so much for your help. Scott in Minnetonka
Hennepin County Minnesota
From your photos, it looks like Rhizosphaera needle cast. You will have to look at the needles with a magnifying glass to confirm. Here is a link to information: http://apps.extension.umn.edu/garden/diagnose/plant/evergreen/spruce/needlesdiscolored.html