Seal or paint exposed wood surfaces
Fill existing holes with wood filler or caulk
Replace damaged wood
Use hardwoods or pressure-treated wood for repairs
Hang carpenter bee traps near active areas
Apply residual insecticide labeled for carpenter bees to nesting sites
Treat holes at dusk or night when bees are inside
Repeat treatments as directed on the product label
Plug holes after bees are inactive
Cover vulnerable wood with metal flashing or paintable sealant
Remove old nests and repair entry points
Keep outdoor wood surfaces well-maintained
Reduce nearby flowering plants if bee activity is high
Call a licensed pest control professional for severe infestations