| imageID: | 17058 |
| Description: | Catkins on Populus wislizenii |
| Keywords: | catkins forest pathology |
| Organisms: | cottonwood |
| Original collection id: | 929 |
| Media: | B&W photograph 3 x 4 in. |
| Collection: | RMRS Archive Images |
| Quality: | 3 |
| Date(mm/dd/yyyy): | 4/27/1915 |
| Comments: | Branch of cottonwood tree with pisillate catkins 24 hours after spraying with a 1% solution of H2SO4. Note how all of the catkins are killed and wilted and hanging vertically downward. Sprayed April 26, 1915. |
| Citation: | Use of this image is governed by Creative Commons CC BY. If you use the image, please include the following citation: USDA Forest Service. 2007. Forest Service Research Image Library. Fort Collins, CO: Forest Service Research Data Archive. https://www.fs.usda.gov/rds/imagedb |
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