Diseases - Foliage Diseases
| 3 Images of 2 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5202099 | poplar rust | Melampsora medusae | The causal agent of poplar leaf rust (also called conifer-aspen rust) fruiting on tamarack. |
| 1479003 | Sirococcus blight of conifers | Sirococcus conigenus | |
| 1479004 | Sirococcus blight of conifers | Sirococcus conigenus | Needle droop, one of the symptoms that can indicate sirococcus blight on red pine. Photo taken on the Chequamegon National Forest in northern Wisconsin. |

