You are here

Traumatic resin ducts indicate past beetle outbreaks


The formation of traumatic resin ducts in Engelmann spruce represents an important induced defense in response to environmental perturbations. The occurrence and strength of resin ducts, in particular traumatic resin ducts, in annually resolved tree rings could be used to reconstruct a tree’s structural damage association with natural disturbances.

To learn more about this see the Science Spotlight Traumatic resin ducts indicate past beetle outbreaks.

(Click on an image to see it in full view.)