Spruce Bark Beetle
The spruce bark beetle has caused extensive tree damage to all species of spruce throughout the West.
Spruce Beetle in Colorado
2012 Statewide Spruce Beetle Activity
Spruce beetle infestations usually are found in large diameter trees that have been felled by wind or stressed by natural factors such as flooding, drought or old age.
Symptoms of Infestation
Needles on infested trees tend to drop to the ground after high winds. This can happen the second summer after the tree has been infested. Trees that have been killed by the spruce bark beetle are very dry and may create a severe fire hazard. In addition, wood products can be lost and watershed function impaired.
Large outbreaks of the spruce bark beetle are difficult to control. Small infestations can be eliminated by quick action such as removal of infested trees. Contact a professional forester about the silvicultural, physical and chemical management practices available.
Learn More About Spruce Bark Beetle
2012 Forest Health Report
- 2012 Report on the Health of Colorado's Forests (3.9 MB PDF)
Maps from the 2012 Report
- 2012 Insect & Disease Activity in Colorado Forests (164 KB PDF)
- 1996-2012 Progression of Forest Insect & Disease in Colorado (205 KB PDF)