Rate of Deterioration of Beetle-Killed Engelmann Spruce
Journal of Forestry
Examination of beetle-killed stands in Utah and Colorado indicate that dead Engelmann Spruce will remain standing and sound for at least 20 years.
Mielke, J. (1950). Rate of deterioration of beetle-killed Engelmann spruce. Journal of Forestry, 48(12): 882-888.