Trees and Shrubs Dying After Weed Killer Application

Likely Herbicide Damage

Ortho weed killer applied near trees/shrubs in spring, followed by decline during drought, suggests herbicide uptake by roots. Many lawn herbicides (e.g., 2,4-D, dicamba) move in soil and are absorbed by woody plant roots.

Remediation Attempt

• Apply Bio-Pak Plus (low N, high P/K, beneficial microbes) per label.
• Water heavily on allowed days to leach chemical.
• Mulch to conserve moisture.

Prevention

Never use broadleaf herbicides near tree/shrub root zones. Spot-treat weeds instead.