The ant population you are seeing is a fraction of the actual colony. The queen, brood, and satellite nests are hidden in the harborage zone. Show Me Pest Control's treatment in Sebastopol reaches all of them through non-repellent bait transfer technology.

The difference between a treatment that ends the problem and one that spreads it is in the method, the product, and the placement.
Before opening a product, your technician confirms the species. Argentine ants, carpenter ants, fire ants, and pavement ants respond to different bait types in different concentrations placed in different locations. Species ID is not optional -- it is the first step.
Professional-grade gel baits and granular baits in non-repellent formulations are placed precisely in harborage zones, foraging corridors, and satellite nest locations. Workers cannot detect the active ingredient, carry it back to the colony, and share it through trophallaxis. The population collapses from within over 3 to 10 days.
Repellent products at the perimeter push ants to find new entry points. Non-repellent products let them walk through freely -- carrying the active ingredient into the colony. We use non-repellent formulations exclusively at the perimeter, maintaining the transfer mechanism that eliminates the population.
Carpenter ant frass -- coarse sawdust near wood members or window frames -- indicates active gallery excavation. We locate the gallery, inject insecticide directly into the cavity, and monitor for secondary satellite nests -- the ones that establish when the primary nest is disturbed.

A typical ant colony visible in your kitchen represents only 10 to 20 percent of the total population. The queen, developing brood, and satellite nests are located in harborage zones -- behind walls, under flooring, inside cabinets, or in the foundation perimeter outside the structure. When a repellent product is applied to a foraging trail, the scouts in contact with the chemical signal the colony to retreat and relocate. The colony does not die -- it splits. New satellite nests establish in areas farther from the treated zone, the colony footprint increases, and the homeowner sees new trails appearing in new locations within days.
Non-repellent bait transfer technology works through a mechanism called trophallaxis -- the food-sharing behavior through which ant workers pass nutrients to each other, to the queen, and to developing larvae. A worker that contacts non-repellent gel bait cannot detect the active ingredient and carries it back to the colony as a food source. The active ingredient is then transferred through the population during normal feeding behavior, reaching workers in the harborage zone, the queen, and the developing brood. Colony collapse begins within 3 to 10 days. The bait must be placed in the correct location -- inside or adjacent to the harborage zone, not on the foraging trail -- for the mechanism to function. Bait placed on a foraging trail is consumed by foragers and does not efficiently reach the reproductive core.
Sprayed for ants in Sebastopol and they keep coming back? Call +1-866-315-0243. We apply non-repellent bait that reaches the queen -- the spray cycle stops here.
The consumer bait products available at hardware stores present a second problem that is distinct from placement: aversion. Ant colonies -- particularly odorous house ants and Argentine ants -- develop behavioral aversion to certain bait formulations after repeated exposure. The colony learns to avoid a bait it has been exposed to even when the product appears fresh. Professional bait formulations rotate active ingredients and attractant compounds specifically to prevent aversion development. When a homeowner reports that bait traps worked the first time and not after that, this is typically the mechanism. A second factor is contamination -- repellent spray applied near an existing bait station makes the station ineffective even if the bait formulation is correct, because the colony detects the repellent and avoids the zone entirely.
Carpenter ants represent a specific category of ant problem that requires a different protocol than other species. Unlike most home-invading ants, carpenter ants are not foraging for food inside the structure -- they are excavating galleries in soft or moisture-damaged wood for nesting purposes. The diagnostic sign is frass: coarse, granular sawdust mixed with ant body parts found near window frames, baseboards, door frames, or in the basement near sill plates. This frass is distinct from termite frass and from general sawdust. Finding it indicates active gallery excavation. Void injection -- applying insecticide directly into the gallery through a drill hole -- is the correct treatment, not surface spray near activity. The satellite nests that carpenter ant colonies establish in adjacent voids must also be located and treated.
Recurring ant pressure in Sebastopol, CA is largely seasonal and predictable. Spring budding creates the maximum colony expansion pressure of the year. Summer heat and drought push foragers into cooled structures. Fall cooling brings foundation ingress. For properties that experience recurring annual infestations, a program that maintains a non-repellent perimeter through the spring and summer eliminates the conditions that allow colonies to establish inside the structure in the first place -- and is priced substantially below repeated reactive treatment costs.

Species identified, harborage zone mapped, protocol explained -- on the first call.
Call +1-866-315-0243From initial species assessment through seasonal prevention programs -- each service supports colony-level elimination.

Species ID determines bait formulation, placement location, and perimeter approach. We confirm it before selecting any product.
Professional-grade non-repellent gel bait placed in harborage zones and foraging corridors. Workers cannot detect the active ingredient and carry it back to the queen through trophallaxis.
Non-repellent residual applied at the foundation line, entry points, and foraging corridors. Ants carry the active ingredient back to the colony rather than being repelled into new routes.
We locate the gallery, inject directly into the excavated cavity, and seal the access point after treatment. Surface spray is not part of the carpenter ant protocol.
Fire ant mound treatment combines direct mound injection and broadcast treatment for large yards with multiple active mounds.
Spring, summer, and fall visits timed to address the colony expansion phases that produce indoor pressure. A prevention program is consistently more economical than repeated reactive treatments.
Four steps from initial contact to confirmed colony collapse.
Describe what you are seeing. We narrow the species before the visit and confirm on-site. The protocol is determined by the species, not a generic plan.
We locate the harborage zone before placing bait. The placement location is more important than the product.
Exterior non-repellent perimeter creates a second transfer pathway. Both treatments work simultaneously to collapse the colony.
Activity should trend downward over 3 to 10 days. The follow-up visit confirms the colony is collapsing and addresses any satellite nests that were not initially apparent.
Real outcomes from Sebastopol homeowners who had tried the spray approach first.
We had been spraying a trail every single day for three weeks. The trail kept reappearing in the exact same location every morning. Show Me Pest Control identified odorous house ants with a satellite nest inside the wall behind the dishwasher. Non-repellent gel placed inside the cabinet toe-kick cavity. Colony confirmed collapsed at the follow-up visit. We have not seen a trail since.
Every trap I bought the ants walked right past. Show Me Pest Control said the colony had been exposed to that formulation too many times and was conditioned to avoid it. Professional bait placed in the harborage zone, not on the trail. Activity dropped within 72 hours.
The coarse sawdust near my window frame turned out to be carpenter ant frass. Show Me Pest Control identified it correctly on the first visit, located the gallery, injected directly into the void. No new frass at the one-month follow-up. The other company I called first had no idea what they were looking at.

Same-day assessment in Sebastopol. Species identification and non-repellent bait placed on the first visit.
Call +1-866-315-0243