Weeping Willow Borers: Systemic Insecticide and Fertilization

Borers in Weeping Willow: Soil Drench Treatment

Borers attack stressed trees. One willow dead; second infested with European hornets feeding on borer sap.

Soil drench: Bayer Advanced Tree & Shrub Insect Control (imidacloprid) around base. Roots carry to borers.
Fertilize: 10-10-10 at 1 lb/inch trunk diameter. Reduces stress.
Monitor: No sap flow from wounds = borers controlled. Don't cut bark to check.

Hornets feed on borer sap. Insecticide stops sap → hornets leave.

Trees: Weeping Willow Unknown Insects: Photo Request for Identification; Transplanted Weeping Willow Not Growing: Likely Dead; Weeping Willow Borer Infestation: Identification and Treatment; Weeping Willow Near House & Drain: Root Concerns & Growth Regulators; Willow Flea Weevil Infestation: Identification and Systemic Control; Herbicide Damage to Weeping Willow from Pond Treatment; Staking and Pruning a Leaning Young Weeping Willow; Managing Mushrooms and Planting Under Maple Trees; How to Transplant a Weeping Willow Tree Successfully; Ants on Lemon Tree? They're Farming Aphids or Scale

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