Homeowners Use Natural Methods to Deter Carpenter Bees

Carpenter bees bore into untreated or weathered wood on decks, siding, fences, and roof soffits. They create tunnels for nesting rather than seeking food or shelter inside homes. The SC Johnson Center for Insect Science said carpenter bees are most active in spring when homeowners notice them hovering near wooden structures.

The center noted that untreated wood is especially attractive to the insects.

Homeowners can paint or stain exposed wood to discourage further boring. Filling existing holes with plugs or steel wool can also prompt bees to seek other nesting sites. DIY traps made from a drilled wood block attached to a jar of sugar water can capture some bees. Hanging wind chimes under eaves or applying citrus or almond essential oils may provide additional deterrence.

When activity persists, professional pest control services identify nesting areas and apply targeted pesticides to tunnels and entrances. Technicians then seal holes and recommend finishes for exposed wood. The SC Johnson Center for Insect Science advised waiting about one week after treatment before sealing holes to avoid trapping active bees inside.

Ongoing general pest control programs can help prevent future infestations.

Regular inspection for new holes or sawdust around wooden structures allows early intervention. Covering wooden soffits with vinyl and maintaining painted or stained surfaces reduces access points. If carpenter bee activity continues year after year or structural damage is suspected, a licensed pest control specialist can assess the extent of any damage and apply regulated treatments.