Fruitless Mulberry Leaking Dark Fluid: Borer Attack & Treatment

Dark brown fluid from branch base on fruitless mulberry. Likely borer infestation.

Treatment Options

Systemic: Imidacloprid soil drench (Bayer Advanced) — roots move to trunk, kill borers inside.
Bark spray: Onyx or Merit (penetrate bark to kill larvae).
Fertilize: 1 lb 10-10-10 per inch DBH — borers attack stressed trees.

Both methods work. Choose based on sprayer access. Check garden center for products.

Trees: Lichen on Mulberry Tree: Symptom of Underlying Stress; Fruitless Mulberry Decline Signs: Dead Branches and Loose Bark; Fruitless Mulberry Stops Growing: Watering Too Light, Tree May Be Dying; Fruitless Mulberry Limb Failure: Internal Decay and Hazard Assessment; Saving a Borer-Infested Mulberry: Systemic and Trunk Spray Options; Fruitless Mulberry One-Sided Decline: Chemical Injury Suspected; Fruitless Mulberry Decline: Internal Decay After Pruning; Slow-Growing Fruitless Mulberry: Root Establishment First; Fruitless Mulberry Root Cutting for Patio: Risk Assessment; Fruitless Mulberry Tree: Landscape Benefits & Growing Guide

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