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Pine Pitch Canker: White Sap Indicates Disease

White hardened sap (rosin) on pine trunks signals pitch canker disease. No sprays or injections cure it. Hire a certified arborist to assess structural risk, as the infection weakens the trunk.

About Gardening: Balsam Fir Needlecast: Safe to Replant Balsams After Removal; Pine Tree Mortality Spread: Professional Diagnosis Urgently Needed; Transplant Shock in Oversized White Pines: Root Stimulation?; White Pine Thinning & Tip Browning: Tip Moth, Weevil, or Roots?; White Pine Growth Seasons in Wisconsin: Spring + Summer; Pine Disease in Neighborhood: Get Forester Visit; Transplanting White Pine into Heavy Clay: Drainage Critical; Cutting White Pine Boughs for January Wedding: Timing and Storage; White Pine Sooty Mold: Aphid Management Restores Clean Foliage; Large White Pine Decline: Beyond Fertilizer

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