I have a very tall Blue Spruce that is losing it's bottom branches. What can I do? The tree is very tall...I'm guessing 30 ft and it looks beautiful from about 4 ft up, but the bottom branches are bare and it's getting worse and going farther up.
Blue Spruce Losing Bottom Branches
Certified GKH Gardening Expert
If the upper branches provide too much shade, the lower branches naturally die off.
On a more serious note: It could be Cytospora Canker, Rhizosphaera Needle Cast, or Stigminia Needle Cast, which are all discussed in detail on the following website:
It could also be the handiwork of a spruce spider mite: