How To Treat Ant Colonies
By DoMyOwn staff
Indoor and Outdoor Ant Colony Treatment
- Nests in Structural Voids should be treated with Delta Dust Insecticide. If the existing point of entry is not large enough to inject the dust, a hole may be drilled and later repaired. Apply Delta Dust in a thin layer (generally 2 to 3 puffs) using a Hand Duster.
- Nests in Wood such as structural timbers, fence posts, tree holes, stumps, or logs, should be treated the same as those in structural voids, using Delta Dust Insecticide and a Hand Duster. Holes may be drilled for easier access.
- Nests in Soil (includes ant colonies located in lawns, flower beds, or underneath stones and rocks)- Drench mound with a water-based liquid insecticide such as Cynoff WP, Suspend SC, or Talstar One. You will also need a Chapin SureSpray 1 Gal Sprayer for mixing and application. Usually only a few ounces is needed, but follow the product label.
- Nests in Landscape Mulch may be treated with a liquid insecticide such as Cynoff WP, Suspend SC, or Talstar One. You will also need a Chapin SureSpray 1 Gal Sprayer for mixing and application. Since mulch is thick and difficult to penetrate, first rake back the mulch to expose the ant colony before treating.
- Nests in Slab Foundations are typically difficult to access, and baits would be the ideal treatment (see step 4). If baiting is unsuccessful, a number of holes may be drilled in the foundation through which a termiticide labeled for application under slab foundations can be used. Termidor SC is an excellent option for such cases.
- Nests in Stack of Lumber, Bricks, or Other Material can be treated by unstacking the materials in order to expose the colonies, then drenching the mound(s) with a liquid insecticide such as Cynoff WP, Suspend SC, or Talstar One, You will need a Chapin SureSpray 1 Gal Sprayer for mixing and application.
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