Winter pests in New Hampshire

Outdoor winter mosquito bites in NH are effectively zero Dec–Feb. But Culex pipiens can overwinter in heated basements and occasionally bite indoors. Here's the full story.

They're dormant, not hibernating: a fat-fueled diapause, empty gut, stored fat. Warm days rouse a few toward windows — last fall's cohort, not newcomers.

Radiators don't produce insects — they wake up ones already inside. Here's why cluster flies and lady beetles show up near radiator heat all winter.

Workers die at first hard frost (~Oct 19 in Manchester per NOAA); queens overwinter in NH stone walls and attics, founding new colonies each April.

New Hampshire's cold doesn't wipe out a yard's tick population. Here's how ticks survive winter under leaf litter and snow — and why they're active again fast.

Rats can survive New Hampshire winters outdoors in burrows, but falling temperatures and thinning food push them toward your foundation, not away from it.

"Mites" means three animals: dust mites in bedding, dormant clover mites in cracks, and rodent mites — a sign of a rodent problem, not a pest of their own.

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.

Yes. Heated New Hampshire homes let clothes moths and pantry moths keep developing all winter long, so cold weather does not pause the damage at all.

A plain wooden snap trap beats glue boards, poison and gadgets for winter rodents -- cheap and effective when placed right. What works, sized for mouse or rat.