USDA Forest Service
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Donald J. Goheen(X)
| 5 Images of 5 Subjects | View Subject List | View Image Details | View Thumbnails |
| Subject | Scientific Name | Images |
|---|---|---|
| black stain root disease | Ophiostoma wageneri | 1 |
| cedar bark beetles | Phloeosinus spp. | 1 |
| mountain pine beetle | Dendroctonus ponderosae | 1 |
| redwood bark beetle | Phloeosinus sequoiae | 1 |
| western pineshoot borer | Eucosma sonomana | 1 |



