Slime Flux and Its Effects on Trees: An Arborist’s Perspective

Slime flux, also known as bacterial wetwood, is a bacterial infection that causes trees to ooze dark, foul-smelling sap from wounds or cracks. Common in elms, oaks, maples, and willows, this condition weakens tree structure, attracts pests, and reduces overall health. While there’s no direct cure, proper pruning, soil care, and stress reduction can help trees recover and prevent further decline.