Water oak in Slidell, LA shows brown circular spots on leaves, progressing to full-tree browning from top down in 3 days. Outer branches snap brown; trunk scrapes green.
Rapid total defoliation suggests acute vascular disruption—possible root damage, lightning strike, chemical injury, or severe vascular wilt. The green cambium indicates the trunk is alive.
Check trunk for loose bark or damage. If newly planted, transplant shock is possible. Contact local agricultural extension (parish office) or nursery for on-site diagnosis. Rapid decline requires professional evaluation.
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