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Oak Leaf Blister: Cosmetic Spring Disease

Oak leaf blister appears in cool, wet springs. It's unsightly but doesn't harm the tree long-term. Rake leaves in fall; next year may be blister-free if spring is dry.

About Gardening: Oak Leaf Galls in Scotland: Harmless Wasp-Induced Growths; Oak Galls: The Strange Green Ball with Purple Hairs; Identifying a Mystery Broadleaf Plant; Oak Leaf Blister: Taphrina caerulescens Symptoms and Control; Winged Elm Identified by Corky Wings; Oak Bacterial Leaf Scorch: A Fatal Disease with No Cure; Peach Leaf Curl on Ornamental Peach: Fungal, Not Insect; Bean Leaf Roller on Limas: Minor Pest, Easy Control; Citrus Leafroller: The Sewn-Leaf Pest; Oak Leaf Blister: Rake Leaves, Tree Will Recover

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