Ant control in Auckland, using transfer bait rather than spray

A single trail with one entry point is usually $145 to $195. A whole of house treatment covering interior and exterior with a return visit runs $260 to $390. Established multi-nest problems, which is what Argentine ant supercolony conditions produce, sit between $400 and $620 across two or three staged visits. We quote in writing after seeing the property.

Because most retail sprays are repellent, and repellents cause budding. The colony detects the treated zone as hostile, splits, and establishes satellite nests elsewhere, each with its own queens. One trail becomes several. This is the most common reason we are called, and it is completely reversible, but it does make the job longer.

It is almost certainly working. Non-repellent bait attracts recruitment, so foraging numbers rise for the first two to four days while the colony carries it home. Numbers then fall away as the bait reaches the queens and the brood. Please do not wipe or spray the trail during that period, because that interrupts exactly the process you want.

Honestly, not in the way people mean by permanently. Argentine ant supercolonies extend well beyond a single property, so what we achieve is sustained control of the population using your building, not eradication of the colony from the neighbourhood. Where a street is affected, coordinated treatment across neighbouring properties works far better than any one house treated alone, and we will tell you when that is the situation.

Bait is placed in cracks, in cavities, behind appliances and in enclosed stations rather than open on surfaces, and the active ingredient is present at very low concentration because the formulation depends on the ant surviving long enough to carry it home. We will show you every placement and note them on the treatment record.

They are after water. A bathroom or laundry trail very often marks a slow leak behind a cabinet, a failed shower seal or condensation in a wall cavity. We treat the ants, but we will also point out the moisture source, because in that situation it is the actual reason they are there.

The species common in Auckland do not eat timber the way termites do, so structural damage is unusual. They will nest in wall insulation and roof voids, they occasionally cause problems in electrical enclosures and appliances, and large colonies in a wall cavity can produce a persistent smell. The main issue is contamination and nuisance rather than damage.

A non-repellent bait matched to the species and to what the colony is feeding on at the time, sugar or protein, placed on the working ant trail rather than across it. Where the ant nest is outside, a non-repellent treatment around the perimeter of the house backs it up. What it is not is a chemical barrier spray along the skirting, which kills foragers and leaves the colony intact. The species decides the details, which is why we identify first.

Honestly, not overnight. Bait usually shows fewer ants within about a week and takes a few weeks to finish the job, and spraying, the option that looks quick, is the slow one because it leaves the nests to rebuild. What you can do today: put food away, wipe benches but not the bait trail, fix any leak the ants are drinking from, and seal the gap where they come in.

Usually one of five things. Colonies grow fast in spring and summer; heavy rain floods outdoor nests and hot dry spells send ants looking for water, both of which push them indoors; a new food or water source has appeared; a plant against the house is covered in aphids or scale producing honeydew; or somebody sprayed recently and the colony split. Each points to a different fix, so it is worth working out which.

Other ants. Colonies of most species fight their neighbours, and in New Zealand the Argentine ant generally out-competes every other ant species where it establishes, because its nests cooperate instead of fighting. That is why, once Argentine ants arrive in a street, they tend to become the only ant in every garden on it.

Often not for a single trail from one entry point, which a homeowner can usually bait successfully. It is worth it when trails turn up in several rooms, ants are coming out of the walls, Argentine ants are in your garden and next door's, someone has sprayed and the colony has split, or the ant is the white-footed house ant, which needs far more bait at far more points. A single trail is $145 to $195, so the question is usually how many weekends you have already spent on it.