Ask Mr Burger – My Colorado Blue Spruce tree is all brown in the middleand losing its needles; what is the problem?

Why is my evergreen turning brown and losing needles? - Gardening at USask - College of Agriculture and Bioresources

Ask a Forester: Are Fading Evergreen Needles Normal in the Fall?, Colorado State Forest Service

Ask Mr. Burger – I see little red spiders on our sidewalk; what are they and how do I get rid of them?

Why is my blue spruce dying? - My Icon Media

Blue Spruce Diseases Andover, MN - Official Website

Why Are Blue Spruce Needles Turning Brown? A Comprehensive Troubleshooting Guide - :)

Colorado blue spruce turning brown and dying from the bottom up : r/plantclinic

Blue Spruce Tree Needles Turning Brown?

What is spruce decline and what should you do about it? - Christmas Trees