| Problems of Paper Birch | |
|---|---|
| Symptoms | Probable Causes |
| Tree branches break | Winter Damage |
| Leaves curled and distorted | Aphids |
| Black powdery sooty mold fungus forms on honeydew; branches may die if problem continues | Ants Herding Aphids For Their Honeydew |
| Small holes in bark and stems surrounded by sawdust | Bronze Birch Borer |
| Trees defoliated, brown egg cases appear on trunk | Larvae Of Gypsy Moth |
| Tip of leaves brown, internal larvae trails visible. Sometimes leaves skeletonized and rolled up | Birch Leafminers |
| Leaves skeletonized | Birch Skeletonizer |
| Holes in leaves | Loopers |
| Water-soaked lesions on branches | Canker, A Bacterial Disease |
| Upper branches dead | Dieback, A Fungal Disease |
| Shelf-like growths on trunks | Wood Rot, A Bacterial Disease |
| Leaves blistered and curled up | Leaf Blister, A Fungal Disease |
| Leaves spotted; turn brown | Leaf Spot, A Fungal Disease |
| Leaves have powdery spots | Rust, A Fungal Disease |
| On young trees foliage looks burned | Dog Urine |
| Bark of stems and roots gnawed | Rodent Injury |
| When young portions of foliage disappear, or young tips disappear, bark peeled in strips | Deer |
Problems of Paper Birch
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