The Most Common Pests in New Brunswick, NJ (and When They Show Up)

A pest calendar built for the Hub City

New Brunswick runs a full four-season pest calendar, and its dense, older housing gives each pest an easy way in. Knowing what shows up when makes it far easier to catch a problem early, before it spreads through a shared wall or eats into a sill plate.

Here is the rough rhythm a local exterminator sees across the city and the surrounding Middlesex County towns.

Spring: termite swarms and the first ants

As the soil warms, eastern subterranean termites swarm, usually the first warm, humid days of spring. A cloud of dark winged insects near a sunny window, or a pile of discarded wings on a sill, is the classic sign. This is the moment to act, because a swarm means an established colony nearby.

Odorous house ants also wake up in spring, trailing to kitchen sinks and pantries after rain, and carpenter ant swarmers may appear indoors from a nest in damp wood.

Summer: roaches, ants, wasps, and mosquitoes

Heat and humidity push German roach populations to peak in apartments and rentals, and ant trails run all season. Wasps and hornets build nests under eaves and in wall voids, and any standing water, clogged gutters, low spots in the yard, breeds mosquitoes.

Summer is also prime bed bug season in New Brunswick's student housing, as move-outs and move-ins shuttle furniture and infestations around town.

Fall: the rodent push

The first cool nights send house mice and rats looking for warmth, and they find it fast in the Hub City's older buildings. Scratching in walls, droppings under sinks, and gnaw marks on packaging all point to rodents settling in for winter. Sealing entry points now pays off all season.

Winter and year-round

Rodents and German roaches stay active indoors through winter in heated buildings, and overwintering pests like spiders and the occasional stink bug turn up in warm pockets. Termites keep feeding underground year-round even when you cannot see them.

If a pest problem outlasts your own efforts, a local exterminator can target it at the source. Call us and describe what you are seeing.

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Have this problem in New Brunswick? Call us at (732) 479-9382 and get connected with a local exterminator.