Spruce Beetles: Colorado's Most Damaging Pest 5 Years Running

New infestations from the spruce beetle topped 136,000 acres this past year. The Gunnison Basin's landscape is splattered with the main source of food for the spruce beetle - Englemann Spruce. The douglas-fir beetle continues to expand and damage new areas, while other invasive species have actually declined in the past few years. Photo: (Dan West - Colorado State Forest Service)