USDA Forest Service
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The U.S. Department of Agriculture Forest Service is a Federal agency that manages public lands in national forests and grasslands. The Forest Service is also the largest forestry research organization in the world, and provides technical and financial assistance to state and private forestry agencies. Gifford Pinchot, the first Chief of the Forest Service, summed up the purpose of the Forest Service—"to provide the greatest amount of good for the greatest amount of people in the long run." |
| 19 Images of 3 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5037078 | ash yellows phytoplasma | Candidatus Phytoplasma fraxini | abnormal branching |
| 5039095 | oak wilt | Ceratocystis fagacearum | expanding oak wilt pocket |
| 5039096 | oak wilt | Ceratocystis fagacearum | aerial photo with highlighted pockets of oak wilt |
| 5039097 | oak wilt | Ceratocystis fagacearum | aerial photo- small pocket of wilt |
| 5039098 | oak wilt | Ceratocystis fagacearum | |
| 5039099 | oak wilt | Ceratocystis fagacearum | trees in July |
| 5039100 | oak wilt | Ceratocystis fagacearum | same trees in image number 5039099 one month later- August |
| 5040025 | oak wilt | Ceratocystis fagacearum | Alamo fungicide set up |
| 5040027 | oak wilt | Ceratocystis fagacearum | herbicide application |
| 5040028 | oak wilt | Ceratocystis fagacearum | chopping to check the cambium |
| 5040033 | oak wilt | Ceratocystis fagacearum | |
| 5040002 | oak wilt | Ceratocystis fagacearum | crown symptoms |
| 5040010 | oak wilt | Ceratocystis fagacearum | grafted roots |
| 5040017 | oak wilt | Ceratocystis fagacearum | |
| 5040020 | oak wilt | Ceratocystis fagacearum | trencher |
| 5040023 | oak wilt | Ceratocystis fagacearum | tree injection |
| 5040024 | oak wilt | Ceratocystis fagacearum | tree injection |
| 5034086 | oak wilt | Ceratocystis fagacearum | oak wilt billboard |
| 2139062 | black stain root disease | Ophiostoma wageneri |
