Ants in the Kitchen: Why They Keep Coming Back
Most ant problems in the kitchen start with a single scout finding food and leaving a scent trail for the rest of the colony. Wiping up the ants you can see rarely solves it, because the colony is somewhere else.
What brings ants inside
- Sticky jars and spills: honey, syrup, jam, soda.
- Crumbs around toasters, under appliances and in cabinets.
- Pet food bowls left out during the day.
- Moisture from leaks under sinks, around dishwashers or near windows.
Breaking the trail
Ants follow chemical trails. Wiping their path with soapy water removes the trail better than wiping with a dry cloth. Keep food in sealed containers, rinse recyclables, and fix small leaks. Look for where the line of ants enters, often along a baseboard, window frame or utility opening, and seal it with caulk.
Spraying the ants you can see often scatters the colony without reaching the queen. That is why the same trail can return a few days later.
When it might be carpenter ants
Carpenter ants are usually larger and black or reddish-black. They do not eat wood, but they hollow it out to nest, often in wood already softened by moisture. Warning signs include:
- Small piles of fine sawdust-like material (called frass) near baseboards, window sills or in the attic.
- Large ants inside in spring, sometimes with wings.
- Faint rustling inside walls.
Carpenter ants can point to a hidden moisture problem, so they are worth having inspected.
When to call a provider
Consider calling if trails keep returning after you have removed food sources, if you see ants in several rooms, or if you suspect carpenter ants.