White pine weevil feeds underneath the bark of the top leader of both Blue Spruce and Engelmann Spruce trees, girdling and killing the top most growth. This damage results in a bushy, deformed tree that is aesthetically undesirable. White pine weevil can be treated with a spring spray or a fall soil injection.
PHOTO (middle) accredited to: W.M. Ciesla, Forest Health Mgmt. Int., www.Bugwood.org
PHOTO (right) accredited to: S. Katovich, USDA Forest Service, www.Bugwood.org