Live Oak Leaf Drop After Wound Paint: Weather Stress, Not Primer

Primer Not the Cause

Automotive primer on 3-4 pruning wounds cannot cause canopy-wide leaf drop. Wound dressings are unnecessary but not systemically toxic.

Real Cause: Weather Stress

• Long hot summer + regular watering
• Then heavy week-long rains
• Sudden moisture fluctuation stresses roots
• Tree sheds leaves to balance transpiration

Assessment

• Green leaves at branch tips = tree recovering
• No action needed
• Monitor for continued decline

Future Pruning

No wound paint needed. Clean cuts heal naturally. Prune in dormant season (winter) for oaks in Texas to avoid oak wilt risk.