Why Ants Invade Orange County Kitchens Every Spring (and How to Stop Them)
Pavement ants, odorous house ants, and carpenter ants all surge in April and May. Here's which one you have and what actually works.
The three ants you'll see in Orange County
Pavement ants are small, dark, and trail along baseboards from cracks in the slab or foundation. Odorous house ants smell like rotten coconut when crushed and form long trails to sweets. Carpenter ants are large (¼–½ inch), often black, and seeing them indoors repeatedly — especially in spring — can mean a nest in damp wood somewhere in the structure.
Why spring is the surge
Colonies spend winter dormant in soil or wall voids. The first warm weeks trigger foraging as queens demand protein for the first brood. Your kitchen is a target because winter depleted the colony's reserves and your counters have crumbs.
Why spraying the trail backfires
Killing the foragers you see removes maybe 5% of the colony. Worse, repellent sprays can cause odorous house ant colonies to split into multiple colonies — a problem called budding that turns one nest into three.
What actually works
Slow-acting bait that foragers carry back to the queen. Gel bait for sweets-loving species, protein bait in early spring. Place it along the trail, not on the counter, and don't clean the trail for a few days — the pheromone path is what delivers the bait to the nest.
When it's a carpenter ant problem
Large ants indoors before June, sawdust-like frass, or faint rustling in a wall means a structural nest. That's a professional job: the parent colony is often outside in a tree or stump, and the satellite nest inside has to be found and treated directly.