Pest Library
Pest Profile

Rodents

Roof rats, Norway rats, and house mice.

Identification

House mice are 2–3" body, gray-brown. Roof rats are slender with long tails and live in attics. Norway rats are stockier with shorter tails and burrow at ground level.

Behavior & habitat

Mice need only a 1/4" gap to enter; rats need 1/2". They breed year-round, contaminate food, gnaw on wires (a major fire hazard), and travel established runways along walls.

Health & property risks

Carry Hantavirus, Salmonella, and Leptospirosis. Chewed wiring causes house fires. Droppings and urine contaminate insulation and stored goods.

Signs of infestation

  • Droppings (small dark capsules) in pantries, cabinets, or attics
  • Gnaw marks on food packaging, baseboards, or wires
  • Scratching or scampering sounds in walls and attic at night
  • Greasy rub marks along walls where rodents repeatedly travel

Prevention tips

  • Seal all gaps larger than 1/4" — focus on garage doors, vents, and roof line
  • Store food in sealed containers; never leave pet food out overnight
  • Trim tree limbs at least 6 ft from the roof (roof rat highways)
  • Eliminate exterior clutter, woodpiles, and overgrown landscaping near foundation

How Black Ops treats it

Snap-trap and tamper-resistant exterior bait stations, full attic and crawlspace inspection, and exterior exclusion (sealing entry points) so the population doesn't rebound.

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