Fall pests in New Hampshire

It depends where they sit. Left leaves smother lawns and invite snow mold, harbor pests at the foundation — but in garden beds, they're a genuine benefit.

Colonies peak in size and aggression in late summer and early fall, right as natural food runs short. That's also the worst time to attempt DIY removal.

They aren't chasing your porch light. Asian lady beetles stage on sun-warmed south and west walls each fall, then work through gaps into wall voids and attics.

Mosquitoes disappear in NH after the first hard freeze — typically mid-October in Manchester, late September in Concord. Full fall timeline and overwintering facts.

The flies at your window in January have been in your walls since September. The ones at your sink never left — and they're breeding right now.

Sticky glue traps reliably catch house centipedes, but they don't fix why centipedes are there. Here's the real fix, and what a trap only monitors.

The common belief is essentially right: crushing lady beetles releases staining, foul-smelling defensive fluid and can agitate others nearby. Don't crush them.

There's no verified miracle remover for bug stains on walls. Mild soap and water, and prevention — vacuuming instead of crushing — is what actually works.

Lab studies show some oils repel stink bugs almost completely — but only briefly, and only under trap conditions. Here's what that means for your house.

Sealing before fall stops overwintering bugs; heat and freezing stop bed bugs and clothes moths. Honest, sourced mechanical steps for NH homeowners.

Sealing beats spraying for stink bugs and boxelder bugs; heat beats mothballs for clothes moths. Honest, sourced natural control for NH's nuisance invaders.