Spruce beetle infestation worsens in Colorado forests

(Adult spruce beetles under the bark of a tree. Photo: Colorado State Forest Service.)

DENVER — Colorado forestry officials say the state’s spruce beetle infestation worsened in 2018.

The Colorado State Forest Service said Thursday the pest was active on 278 square miles of high elevation lands last year.

Since 2000, the beetle has damaged about 2,800 square miles.

The agency said the roundheaded pine beetle and Douglas fir beetle damaged a combined 64 square miles last year.

The agency’s annual report said that wildfires consumed the second-largest area in state history in 2018 but did not say how much land was affected.

The report blamed dense, unhealthy forests, drought, and warmer temperatures linked to climate change.

The agency said the losses could have been worse if not for thinning, fire breaks and other preventive work.

Notice: you are using an outdated browser. Microsoft does not recommend using IE as your default browser. Some features on this website, like video and images, might not work properly. For the best experience, please upgrade your browser.