Western Colorado Insects

Residential and Commercial

Dry Wood Termites

Dry wood termites are present in the lower elevations of western Colorado. They occur in the TRi River Area, along the Colorado River Valley east to at least Rifle, and extreme SW CO. Dry wood termites can be identified by their fecal pellets, pictured here. They may be present in other areas. This TX Extension bulletin covers the basics of their biology.

Dry Wood Termites-University of Texas (html) Termite Fecal Pellets

Subterranean Termites

Subterranean termites are native to western Colorado and present in many homes, yards, and natural areas. They feed on wood that is in contact with soil, or where they construct earthen feeding tubes to create contact with soil. This CSU fact sheet explains subterranean termite biology. Consult with a professional termite control company if you suspect you have a termite problem.

Termites-CSU Fact Sheet

Termites-CSU Fact Sheet (pdf)

Subterannean Termites

Powder Post Beetles

We commonly get wood products that have been damaged by powder post beetles in the Extension office. Damage appears a small (about 1/8 inch across) circular holes in wood and wood products that may be 5 or more years old. Active infestations will produce sawdust. It is important to properly identify the insect that has done damage, although actual beetles ar not commonly seen. A lot can be learned by inspecting the damaged wood. These links will take you to excellent sources of information.

Powderpost Beetles - KY fact sheet

Powderpost Beetles - Ohio State fact sheet


European Paper Wasp

The European paper wasp, Polistes dominulus, has become established throughout western Colorado. It's open celled nests can be found on houses and structures, in concealed places, and in many hidden sites. The wasps can inflict a painful sting when they are disturbed. This TRA publication describes their biology and control.

TRA European Paper Wasp (shtml)

TRA European Paper Wasp (pdf)

European Paper Wasp Nest

This page was updated on March 3, 2016