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Insects

Brown Field Ant

The brown field ant nests outdoors in soil, lawns and under slabs, but enters homes seeking sweet food. Very common in Quebec during summer.

Danger
Size3 to 5 mm
ColorLight to dark brown
LifespanQueens: several years; workers: a few months
Brown Field Ant

How to identify

Small light- to dark-brown ant with a uniform body. Often seen in long trails along baseboards and counters.

Typical habitat

Outdoor nests in soil, under slabs, sidewalks and stones. Enters homes through cracks to forage.

Health risks

The brown field ant doesn't sting and poses no direct health risk. However, it can contaminate food and signal a large nearby nest.

Signs of an infestation

If you notice any of these signs, contact us quickly.

  • Long ant trails along walls and counters
  • Small dirt mounds in the lawn or between slabs
  • Ants attracted to sweet foods
  • Increased activity in hot dry weather
  • Visible entry points near windows and doors

How to prevent

Simple measures to apply to limit infestation risk.

  • Store sweet foods in airtight containers
  • Clean crumbs and residue quickly
  • Seal cracks and entry points
  • Eliminate aphids (honeydew source) on plants
  • Keep mulch and soil away from the house perimeter

Brown Field Ant problem? We respond within 4 hours

Montreal, Laval, South Shore, North Shore. Written guarantee, certified technician, unmarked vehicle.