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Local rodent information

Rodent control in Alaska

Learn what to look for around your property, explore your city, and ask about an inspection or a quote.

Rodents in Alaska: what to know

Around Alaska

Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.

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 Alaska: what the public record shows

Before you compare quotes, it helps to know which rodents actually live in Alaska, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.

greater than ¼ inch
Opening size to seal against mice

UAF Extension recommends steel wool mixed with caulking compound, smoothed so mice cannot pull it out.

University of Alaska Fairbanks Cooperative Extension Service
eat four pounds of food and contaminate 10 times that amount with urine and some of the 18,000 droppings
What one pair of mice does in six months

Contamination, not consumption, is the main food loss.

University of Alaska Fairbanks Cooperative Extension Service
at least 21 large Alaska islands
Large Alaska islands with Norway rats

Rats also have established populations in Ketchikan, Juneau, Fairbanks, Sitka and Nome; Anchorage keeps strict anti-rat rules.

Alaska Department of Fish and Game, Division of Wildlife Conservation

Rodent species recorded in Alaska

  • 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.
  • Roof rat (Rattus rattus) — Climber of attics and trees in warm and coastal regions; tail longer than head plus body.

When rodents are busiest in Alaska

ADF&G reports mouse tracks in snow leading from one house to another in Alaska, so winter movement between buildings is documented.

ADF&G: most rats in Alaska are Norway rats, roof rats occur in several locations, and the house mouse is the most common rodent in urban and developed areas. Pesticide certification is provided through the State of Alaska DEC Pesticide branch; UAF Cooperative Extension runs the training workshops.

For context, nationally

  • 1/4 inch (the width of a pencil) — Smallest gap a mouse can enter. CDC
  • 890; 35% fatal; 94% west of the Mississippi — Hantavirus cases reported since 1993 (through 2023). CDC

Sources: University of Alaska Fairbanks Cooperative Extension Service; Alaska Department of Fish and Game, Division of Wildlife Conservation; CDC; Pest Notes: House Mouse; Pest Notes: Rats. Figures are quoted as the source prints them. How we check our sources

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