Cut the willow near ground level and immediately paint the fresh stump with concentrated glyphosate (Roundup). The herbicide translocates to the extensive root system, killing the entire tree. For very large trees, cut in sections, treating the final stump. Use the smallest effective container; avoid contact with desirable plants. Glyphosate does not move through soil to other plants.
Bracket Fungi on Tree Trunks: Don't Spray, Fertilize for Strength
Weeping Willow Borers: Systemic Insecticide and Fertilization
Planting Persimmon After Elm Removal: Stump Treatment Guide
Willow Yellowing & Black Branches: Water + Check for Insects
Willow 25 m from House: No Subsidence Risk
Leafless 3-Year Willow Oak in Northern Virginia: Water and Wait
Willow Flea Beetles: Annual Invasion & Systemic Prevention
Dealing with a Slimy, Odorous Tree Stump
Killing an Evergreen: Girdling vs. Herbicide, and the Dead Tree Problem
Willow Tree Encroachment and Property Line Liability
Dog-Damaged Weeping Willow: Will It Sprout Back?
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