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." |
| 14 Images of 7 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5476127 | hemlock woolly adelgid | Adelges tsugae | |
| 5449377 | emerald ash borer | Agrilus planipennis | The eggs of emerald ash borer are laid on ash trees in bark crevices or between bark layers. The eggs are white when first laid, but soon turn an amber color. |
| 5449381 | emerald ash borer | Agrilus planipennis | Eggs of emerald ash borer are ~1mm in diamater and amber in color. Females lay their eggs on ash trees in bark crevices and between layers of bark. To find eggs in the field, we use a sharp knife to separated bark layers, exposing the eggs, |
| 5431700 | Asian longhorned beetle | Anoplophora glabripennis | |
| 5383237 | periodical cicada | Magicicada septendecim | Closeup of eggs in twig. |
| 5383238 | periodical cicada | Magicicada septendecim | Closeup of eggs in twig. |
| 5383239 | periodical cicada | Magicicada septendecim | Cicada eggs on penny to show size. |
| 5383242 | periodical cicada | Magicicada septendecim | |
| 2142095 | pinyon needle scale | Matsucoccus acalyptus | eggs on needle |
| 2142096 | pinyon needle scale | Matsucoccus acalyptus | eggs on pine needles |
| 2142097 | pinyon needle scale | Matsucoccus acalyptus | eggs on needles |
| 2142098 | pinyon needle scale | Matsucoccus acalyptus | eggs on needles |
| 2142063 | mountain pine beetle | Dendroctonus ponderosae | gallery with eggs |
| 1241555 | Douglas-fir tussock moth | Orgyia pseudotsugata | Eggs are held in masses by a gelatinous substance containing hairs from the female's body. |
