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Oak with Old Pruning Wound and Insects

Clean, Spray, and Monitor

Large oak with unsealed limb wound, black spots, ants, roly-polies, caterpillars. Clean loose bark, spray trunk with borer insecticide (e.g., Sevin). Don't seal wound—tree will compartmentalize. Healthy foliage = tree OK. Hollow may develop in 10–20 years but not a health issue.

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