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Maple Sap Flow After Utility Pruning: Normal and Temporary

Spring pruning by utility crews causes sap bleeding from wounds—normal root pressure. Stops in weeks. Don't apply wound dressings. Spray wounds with imidacloprid (Merit) to deter borers attracted to sap. Fertilize with 10-10-10 at 1 lb/inch trunk diameter.

Low infestation risk in most areas. Large trees rarely die from borers; breakage is the main concern.

Trees: Sugar Maple White Spots: Harmless Lichens, Real Issue Likely Planting or Herbicide; Sugar Maple Sapling Care: Container Growing Until Permanent Planting; Sugar Maple Planting Distance from Foundation: Branch vs. Root Concerns; Maple Trunk Split: Wound Healing and Borer Prevention; Treating Borer Damage and Sap Flow in Crimson Maple; Maple Trunk Rot from Old Pruning Wound; Borer Damage on Mature Silver Maple; Sugar Maple Root Damage from Edging: Recovery Through Fertilization; Ice Storm Damage on Silver Hybrid Maple: Wound Care; Newly Planted Sugar Maple Struggles in Clay Soil and Heat

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