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Street Trees with Blackened Bark: Sooty Bark Disease

50-year-old street trees in East Meadow, NY show one-sided black bark (no rub-off). Likely sooty bark disease (Cryptostroma), a stress/drought fungus. No cure except vigor: water during drought, fertilize. One reference suggests cutting out canker to good wood and spraying copper fungicide—only if localized. Keep trees healthy.

Management

Water deeply in dry periods.
Fertilize to boost defense.
Canker removal + copper spray if small.

Trees: Black Spots on Japanese Maple Bark: Likely Harmless Lichens; Maple Trunk Bark Peeling: Wound Care (Bark Scoring); Paperbark Maple Sparse Foliage and Heavy Seeding: Causes and Fixes; Coral Bark Maple Losing Bark: Sunscald, Borers, or Natural Exfoliation?; Black Wet Areas on Oak Trunk: Borer Damage, Not Fatal; Frost Crack vs. Sunscald on Young Autumn Maple; Maple Bark Peeling: Decay Fungi and Borer Prevention; Car Impact on Maple: Bark Stripping Repair and Borer Prevention; Large White Grubs in Maple Trunks: Flatheaded Borers; Maple with Holes and Black Bark: Borers and Surface Fungus

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Plants

Silver Maple Losing Large Bark Slabs: When to Worry & What to Do

Red Maple Bark Decay and Yellow Leaves: Borer Treatment and Fertilization

Maple Bark Splitting: Sunscald Diagnosis and Borer Prevention

Red Maple Bark Splitting: Sunscald/Frost Cracks

Silver Maple Frost Crack or Sunscald: Cosmetic, Not Fatal

Dog Rope Girdled Young Maple: Assess Cambium, Prevent Borers

Young Maple Bark Peeling: Frost Crack Management