Diseases - Foliage Diseases
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Pennsylvania Department of Conservation and Natural Resources - Forestry Archive(X) 4 Sizes Available(X)
| 5 Images of 2 Subjects | View Subject List | View Image Details | View Thumbnails |
| Subject | Scientific Name | Images |
|---|---|---|
| hemlock needle rust | Pucciniastrum vaccinii | 1 |
| needle blight of hemlock | Fabrella tsugae | 4 |
