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." |
| 23 Images of 11 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 2251056 | lodgepole pine needle cast | Lophodermella concolor | older stand with injury |
| 2251057 | lodgepole pine needle cast | Lophodermella concolor | young stand in foreground with injury |
| 1406064 | pine needle cast | Lophodermium pinastri | winter burn and Lophodermium on 40,000 Northern Christmas trees, Holman Farm |
| 1467378 | Medusa needle blight | Davisomycella medusa | |
| 1467379 | Medusa needle blight | Davisomycella medusa | |
| 1467385 | white pine needlecast | Lophodermella arcuata | |
| 1467392 | needle cast | Virgella robusta | |
| 1467376 | Rhabdocline needlecast | Rhabdocline weirii | |
| 5422109 | pasmo disease of linseed | Mycosphaerella linicola | |
| 1473260 | pine needle cast | Lophodermella cerina | Lophodermella cerina center in ponderosa; NM, Lincoln Co., Mescalero Apache IR, Upper Fence Canyon |
| 1473200 | pine needle cast | Lophodermella cerina | close up of original infection center from intersection of Walken and Snowdrift Roads |
| 1473255 | pine needle cast | Lophodermella cerina | |
| 1473256 | pine needle cast | Lophodermella cerina | moderate infection |
| 1473257 | pine needle cast | Lophodermella cerina | heavy infection |
| 1473258 | pine needle cast | Lophodermella cerina | heavy infection |
| 1473259 | pine needle cast | Lophodermella cerina | |
| 1467041 | pine needle cast | Lophodermium pinastri | |
| 1467377 | Medusa needle blight | Davisomycella medusa | |
| 1467380 | Medusa needle blight | Davisomycella medusa | |
| 1467364 | Elytroderma needle cast of pine | Elytroderma deformans | |
| 1468024 | Marssonina leaf spot | Marssonina tremulae | |
| 1468025 | Marssonina leaf spot | Marssonina tremulae | |
| 0590052 | dogwood anthracnose | Discula destructiva | defoliated trees |
