Carpenter Ant Void Treatment
Target Pests (1)
| Common Name | Scientific Name | Category |
|---|---|---|
| Carpenter Ant | Camponotus spp. | Ants |
Application Method
Treat wall voids and other structural voids where carpenter ant nests are located. Drill small holes (1/8 inch) through wall near suspected nest site - typically where ant activity highest, near moisture damage, or where wood sounds hollow when tapped. Inject insecticidal dust (boric acid, diatomaceous earth, deltamethrin dust), foam formulation, or aerosol deep into void. For dust: use hand duster to puff light coating throughout void space. For foam: inject expanding foam that carries insecticide throughout void and into nest galleries. For aerosol: use crack and crevice injector tip. Treat multiple injection points along wall to ensure void coverage. Seal holes after treatment. Direct nest treatment provides fastest colony elimination.
Timing
Treat when nest location confirmed by observation of large numbers of ants, frass piles, or audible sound of ants in walls.
Frequency
Single treatment usually sufficient if nest located and treated properly. Follow-up treatment in 2-3 weeks if activity persists.
Preparation Required
Identify nest location through inspection (frass, ant activity, tapping walls for hollow sound, moisture meter readings). Use stud finder to locate wall cavity. Have appropriate treatment product and application equipment ready.
Follow-up Required
Seal drill holes with spackle or caulk. Monitor for continued ant activity. If activity persists, nest may be in different location or multiple nests present. Address moisture issues that attracted carpenter ants to prevent future infestations.
Safety Precautions
- Requires licensed pest management professional
- Drill carefully to avoid electrical wiring and plumbing
- Use stud finder before drilling
- Avoid over-application of dust - light coating most effective
- Ensure adequate ventilation if using aerosol in enclosed spaces
- Seal drill holes after treatment