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Silver Maple Frost Crack or Sunscald: Cosmetic, Not Fatal

Diagnosis

Vertical 3-ft split, 1.5 in wide, on south/west side = frost crack or sunscald. Common on maples. Does not kill the tree.

Care

Trim loose bark edges cleanly.
Do NOT paint or seal.
Spray wound with Merit to deter borers.
Fertilize fall with 10-10-10 at 1 lb/inch diameter.
Wrap trunk with white tree wrap Nov–Apr for prevention (optional).

Trees: Paperbark Maple Sparse Foliage and Heavy Seeding: Causes and Fixes; Saving a Split Maple Tree with Bracing; Coral Bark Maple Losing Bark: Sunscald, Borers, or Natural Exfoliation?; Frost Crack vs. Sunscald on Young Autumn Maple; Frost Cracks and Sunscald on Young Maple Trees; Maple Bark Peeling: Decay Fungi and Borer Prevention; Car Impact on Maple: Bark Stripping Repair and Borer Prevention; Borer Damage in Tree: Cracking, Leaking Bark with Insects Inside; Large White Grubs in Maple Trunks: Flatheaded Borers; Maple with Holes and Black Bark: Borers and Surface Fungus

Garden Articles

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Maple Bark Splitting: Normal Aging or Cause for Concern?

Silver Maple Bark Splitting: Sunscald Diagnosis and Prevention

Maple Trunk Split: Wound Healing and Borer Prevention

Can a Crimson King Maple Survive Severe Bark Splitting?

Plants

Maple Borers: Low Spread Risk, Monitor and Protect

Bark Lice on Silver Maple: Harmless Insects Creating Silken Webbing

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

Dog Rope Girdled Young Maple: Assess Cambium, Prevent Borers

Young Maple Bark Peeling: Frost Crack Management

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