Cherry Tree Sap, Bark Cracks, and Amber Glob: Borer Infestation

Newly planted weeping cherry (March) shows bark peeling, slit with sap, amber glob at soil line (recurs after removal). Nearby dogwood dying from borers (D-shaped holes). Owner applied Bayer systemic, Bio-tone, insecticide.

Borer Activity Confirmed

Sap and amber glob (frass) indicate borers. Bayer systemic takes weeks to translocate. Immediate action: poke sap areas with needle to kill larvae. Spray trunk with Merit (imidacloprid) for faster control.

Organic Alternative

Expert recommends "Atomic Grow" (food-based, raises brix) as all-in-one replacement for multiple products. Safe for pets. Apply to leaves, bark, soil.

Integrated Approach

Combine mechanical (needle), chemical (Merit), systemic (Bayer), and cultural (water 1 inch weekly, fertilize) for best chance. Monitor glob recurrence—indicates active borers.