Around New Hampshire
Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.
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Local rodent information
Rodent control in New Hampshire
Learn what to look for around your property, explore your city, and ask about an inspection or a quote.
Rodents in New Hampshire: what to know
What to note
Where you see rodents, how long it has been going on, and anything you’ve already tried are the most useful details to mention.
A useful next step
Ask about an inspection, what treatment would involve, and whether follow-up visits are included. You don’t need to identify the problem yourself before getting in touch.
Local research
Rodents in New Hampshire: what the public record shows
Before you compare quotes, it helps to know which rodents actually live in New Hampshire, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.
34 of 35 animals
Wildlife tested that had rodenticide exposure
Necropsies at the NH Veterinary Diagnostic Laboratory found exposure statewide, often to long-acting second-generation anticoagulants.
University of New Hampshire Extension5-7 days
Days from a lethal anticoagulant dose to death
Rodents keep feeding after taking a lethal dose, so carcasses carry far more poison than one dose to hawks, owls and pets.
University of New Hampshire ExtensionSeveral
Bald eagles poisoned by rodenticides in the past five years
Documented hawk and owl deaths from rodent poisons go back two decades in New Hampshire.
University of New Hampshire ExtensionRodent species recorded in New Hampshire
- House mouse (Mus musculus) — Enters at 1/4 inch; 5-10 litters per year; eats about 200 small meals a night.
- Norway rat (Rattus norvegicus) — Burrowing rat of basements, sewers and ground floors; tail shorter than head plus body.
- Deer mouse (Peromyscus maniculatus) — Primary U.S. hantavirus carrier; lives throughout Washington and the interior West.
UNH Extension pushes trapping and exclusion over bait because of documented secondary poisoning in New Hampshire raptors.
For context, nationally
Sources: University of New Hampshire Extension; CDC; Pest Notes: House Mouse; Pest Notes: Rats; Hantavirus. Figures are quoted as the source prints them. How we check our sources
Explore New Hampshire cities
Bedford
Humid Continental · suburban setting
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Concord
Humid Continental · suburban setting
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Derry
Humid Continental · suburban setting
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Dover
Humid Continental · suburban setting
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Hudson
Humid Continental · suburban setting
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Londonderry
Humid Continental · suburban setting
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Manchester
Humid Continental · urban setting
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Merrimack
Humid Continental · suburban setting
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Nashua
Humid Continental · urban setting
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Rochester
Humid Continental · suburban setting
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Salem
Humid Continental · suburban setting
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Portsmouth
Humid Continental · urban setting
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