Carpenter Ant Non-Repellent Treatment

ChemicalLicense Required
Effectiveness:
Cost Level
Medium
Environmental Impact
Medium
Resistance Risk
Medium
Target Pests
1 species

Target Pests (1)

Common NameScientific NameCategory
Carpenter AntCamponotus spp.Ants

Application Method

Apply non-repellent liquid insecticide (fipronil, indoxacarb, chlorfenapyr) to areas where carpenter ants are foraging and trailing. Non-repellent products cannot be detected by ants, allowing foragers to contact treated surfaces and transfer active ingredient to colony members through grooming and trophallaxis. Apply as crack and crevice treatment to baseboards, window sills, door frames, plumbing penetrations, and electrical outlets. For exterior: treat foundation, tree stumps, firewood piles, landscape timbers, and other wood structures where ants may be nesting. Drill and treat wall voids if nest location identified. Non-repellents provide superior carpenter ant control compared to repellent pyrethroids by killing ants before they can detect and avoid treated areas.

Timing

Most effective in spring when carpenter ants are actively foraging. Can be applied any time activity observed.

Frequency

Initial treatment with follow-up in 2-3 weeks. Reapply every 60-90 days during active season if needed. Products provide extended residual.

Preparation Required

Identify ant trails and foraging areas. Locate nest if possible (wall voids, stumps, landscape timber). Clear access to treatment areas. Remove food sources and correct moisture issues.

Follow-up Required

Monitor ant activity with baits and visual inspection. Allow 2-3 weeks for colony elimination through transfer effect. Schedule follow-up treatment if activity persists. Remove wood-to-ground contact and correct moisture issues for long-term prevention.

Safety Precautions

  • Requires licensed pest management professional
  • Keep people and pets off treated surfaces until dry
  • Do not apply to food contact surfaces
  • Some products highly toxic to fish - avoid application near aquariums and ponds
  • Wear appropriate PPE
  • Follow all label precautions
Important Disclaimer: The information provided in this knowledge base is for educational and reference purposes only. Pest management professionals should always consult current product labels, Safety Data Sheets (SDS), manufacturer instructions, and applicable local, state, and federal regulations as the definitive source of truth. Product formulations, application methods, safety requirements, and regulations may change over time. This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.