WY CAPS Program
University of Wyoming
Dept. Ecosystem Science & Management: 3354
1000 East University Ave.
Laramie, WY 82071
Photo by Pest and Diseases Image Library, Bugwood.org
The lesser spruce bark beetle (Hylurgops palliatus) is a pest of coniferous trees. This pest usually attacks stressed or dying trees. It is native to Europe and has been found in three northeastern US states since 2001. Surveys are conducted because of the presence of potential host material in Wyoming. To date, it has not been found in Wyoming. Two hundred thirty-four traps have been placed throughout twenty-three counties in Wyoming since 2008.
The lesser spruce bark beetle survey is conducted by the Animal and Plant Health Inspection Service, Plant Protection and Quarantine. A Lindgren funnel trap with host attractant is placed on or near the host plant from May until September. If suspects are found they are sent to a regional entomologist for further identification.