Decay Fungi vs. Oak Wilt in Tennessee Oaks

TN (near GA/AL): Oak died, inner wood fine, 2" sawdust-like layer under bark all around. Neighbor's oak same. County agent suggested Durban spray for fungus on nearby tree.

Diagnosis: Decay Fungi (Not Oak Wilt)

• Infect dead woody cells only—not living cambium.
• Don't spread to other trees without wounds.
• Chips/stump not contagious.

Action

1. Fertilize all oaks: 10-10-10 at 1 lb/inch trunk diameter (fall + spring).
2. Don't spray Durban—insecticide, useless for disease.
3. Call county forester for confirmation.
4. Oak wilt unlikely in this region but forester can verify.

Oak wilt reference (northern focus).