| 5382346 |
large aspen tortrix |
Choristoneura conflictana |
Aerial view of defoliation of aspen caused by the large aspen tortix |
| 5382347 |
large aspen tortrix |
Choristoneura conflictana |
Aspens defoliated by large aspen tortix |
| 5382500 |
western spruce budworm |
Choristoneura freemani |
Defoliation of Engelmann spruce and subalpine fir |
| 5382501 |
western spruce budworm |
Choristoneura freemani |
Heavy defoliation of Engelmann spruce and subalpine fir |
| 5382502 |
western spruce budworm |
Choristoneura freemani |
Aerial view of defoliation of mixed conifers. |