USDA Forest Service
| 4 Images of 4 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5045089 | pruning (general) | Good pruning cut | |
| 5052083 | decay | Using an increment corer to examine a tree for decay. | |
| 2122012 | pesticides | Calibration trials - note blue dye coming from spray boom. | |
| 0010003 | seeds/cones | The quality of the seed lot is established by a germination test, which measures how many seeds will germinate under the ideal conditions. For nurseries that do not have a germination chamber, these tests can be done for a fee at the National Tree Seed Laboratory or a private seed testing laboratory. |

