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| Image | Descriptor | Description |
|---|---|---|
| 4215053 | Symptoms | cankers on aspen |
| 4215054 | Symptoms | on aspen |
| 1473154 | Symptoms | also referred to as black canker; photo taken 9/1/1968 |
| 1473164 | Symptoms | photo taken 7/1/1970 |
| 1473093 | Symptoms |
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Invasive.org is a joint project of the Center for Invasive Species and Ecosystem Health and USDA APHIS PPQ, with additional support from USDA National Institute of Food and Agriculture and USDA Forest Service. The University of Georgia - Warnell School of Forestry and Natural Resources and College of Agricultural and Environmental Sciences |
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Last updated on Tuesday, May 04, 2010 at 02:41 PM
