What to Do When Ants Get Into a Utica Home

Why do ants appear suddenly in the kitchen?

Because a worker has found food or water, and it has laid a scent trail back to the colony. Other workers follow the trail, and the group grows within a few hours.

Ants do not wander into a kitchen at random. A worker that finds a sugar spill, a crumb or a drip of water returns to the nest and marks the route. The scent trail is what draws the others. A kitchen that looked clean the night before can be busy by morning if one worker has found a source.

Understanding this helps the homeowner see why the first sighting is only a piece of the problem. The trail runs from the food back to the nest, and the nest can be in a wall, under a slab or in the yard. Finding the route is the first job, and it is worth doing before any product is used.

What to do on day one

Clean the food sources, watch the trail and take notes. Do not spray the trail or wipe it away with strong cleaners.

The first step is to remove what the ants are eating. Wipe the counter with plain water or a mild detergent, rinse the sponge and put away sugary items, pet food and open packets. A dry, clean counter is the best starting point, because the ants will then look for food along the trail that still exists.

Next, watch the trail. Note where it starts, where it runs and where it goes out of sight. A line of ants crossing the floor from a gap by the back door tells the homeowner where to look outside. Write down the time of day the ants are most active, since that helps the technician plan the first visit.

• Wipe the counters with plain water or a mild detergent
• Put sugary items and pet food in sealed containers
• Watch the trail and note where it starts and ends
• Write down when the ants are most active

How do you find the entry point?

Follow the trail along the wall or the floor edge until it goes into a gap, a crack or a pipe. The entry point is often where the trail disappears.

Ants move along edges, so the trail usually follows a baseboard, a pipe or a cable. Look where the line of ants goes into a crack, a gap around a pipe, the space between a counter and the wall, or the edge of a window frame. That point is the entry, and it is worth marking with a piece of tape so it can be seen again.

Check the outside as well. A gap at the foundation, a crack in the path or a planter bed against the wall can be where the trail begins. A flashlight at dusk shows the activity more clearly, and a photograph helps the technician later.

Should you use a home treatment?

Bait can help with some ants, but a spray on the trail usually scatters the colony and makes the job harder. A technician can place bait where it will reach the colony.

Home baits are designed to be carried back to the colony, and when they are used correctly they can reduce the number of ants over time. A spray on the trail kills the workers that are visible, but it scatters the rest and can send the colony along a new route. The result is often a larger number of ants in a different part of the house.

If a homeowner does use a product, the label should be followed exactly, and the product should be kept away from children and pets. The technician can advise on what is suitable for the situation and for the place where the ants are coming in.

When the nest is outside

A nest in the yard, a planter or the foundation line is a common source. Treatment has to reach the nest and the outside route as well as the kitchen.

Many house ants nest in the soil, under pavers, in mulch or along the foundation. The trail that reaches the kitchen usually begins at one of those places. A technician treats the outside edge where the nest is found, which stops the supply of workers rather than only the ones that reach the house.

Homeowners can help by moving mulch and leaf litter back from the wall and by keeping a narrow band of bare soil or gravel at the foundation. That change makes the outside harder for the ants to use, and it reduces the need for repeated treatment.

When to call a technician

Call if the trail returns within a few days of cleaning, if the ants are large, if the activity is in a wall or if the trail comes from the yard.

Large ants, especially black ants that are seen walking along a beam or in the wood, need a technician, because they can be carpenter ants and they nest in damp or damaged wood. Ants that appear in a wall or behind an appliance are also a call, since the nest is out of reach.

A trail that returns after cleaning means the colony is still supplying workers. The homeowner should keep the notes and photographs from the first week, since they shorten the first visit and help the technician find the nest faster.

• The trail returns after a few days of cleaning
• The ants are large or appear in the wood
• The activity is in a wall or behind an appliance
• The trail comes from the yard or the foundation

What the technician will do

The technician follows the trail, identifies the species, finds the nest and places treatment where the colony will carry it. The first visit ends with a plan and a follow-up date.

On the visit, the technician asks about the first week, the trail and the notes made. The trail is followed, the species is identified and the nest is found if it can be reached. Treatment is placed where the foragers travel and where the nest is, and the homeowner is told what the plan involves.

The follow-up checks the trail and the nest site. If the trail has dropped off, the job is closed. If it has moved, the technician looks for a second route or nest, rather than repeating the same treatment in the same place.

What the ants are actually after

Sugar, protein, grease and water. Knowing which one the ants want helps the homeowner remove the source without disturbing the trail.

Sugar is the most common attraction in a kitchen: a spilled drink, a jam jar with a sticky lid or a sweet crumb under the toaster. Protein and grease draw other species, especially where meat, cheese or cooking oil has been left out. Water draws ants to the sink, the pet bowl and any leaking pipe.

Walk the kitchen with the trail in mind. Each source that the ants are using is a reason for them to keep coming, and each one that is removed reduces the traffic. The trail itself is the route, so it should be left in place while the sources are removed.

Cleaning that helps and cleaning that hurts

Wiping food sources helps. Scrubbing the trail with a strong product removes the scent that guides the colony and makes the job harder.

Plain water and a mild detergent are enough to remove food residue from counters, sink edges and shelves. Rinse the cloth between wipes so that the residue is not spread. Avoid bleach, vinegar-heavy mixtures and strong degreasers on the trail itself, because they can remove the scent and scatter the workers.

Clean the food sources first, then leave the trail alone. A homeowner who keeps the counter dry and the food sealed will often see the trail become less active within days, which shows the source is gone.

What a useful photograph shows

The trail, the ants and a reference object in the same frame. A close shot of the ants and a wider shot of the route help the technician plan the first visit.

A close photograph shows the species, the size and the colour of the ants. A wider photograph shows the route from the entry point to the food source. A coin or a ruler placed beside the ants gives the scale, which helps identify the species.

Send the photographs with a short note of where they were taken, the date and the time of day. That information is more useful than a long description, and it lets the technician decide what to bring on the first visit.

Ants that are not house ants

Large ants, especially black ones seen walking along beams or in damp wood, may be carpenter ants. Their nests are in wood, and they need a different approach from a house ant trail.

Carpenter ants are larger than most house ants, and they nest in wood that is damp or damaged. Their presence is often shown by fine sawdust below a window, a beam or a joist, not by a trail along the counter. A homeowner who sees large ants walking in the wood should not wipe them away, but should photograph them and call.

The technician identifies the species from the samples and the nest, and the carpenter ant guide on this site describes the signs and the approach in more detail. The moisture source that attracts them is part of the repair.