Monophagous-on-pinus
Guides
Dioryctria zimmermani
Zimmerman pine moth
Dioryctria zimmermani, the Zimmerman pine moth, is a conifer-feeding moth in the family Pyralidae. It is a significant pest of pine trees in the midwestern and northeastern United States and southern Canada. The species has one generation per year, with adults emerging in late August and eggs hatching through mid-September. Larvae bore into pine bark and cones, causing damage to host trees.