Every fall, as temperatures in the Hudson Valley drop below 50°F, field mice and white-footed mice begin their annual migration from Rockland County's forests and fields into the warmth of residential structures. By November, it's a flood.
Call for Rodent Control: (329) 210-4481Unlike southern states where rodent pressure is constant, Rockland County experiences a dramatic seasonal pattern. Understanding this cycle is key to effective control:
White-footed miceâabundant throughout Rockland Countyâare the primary reservoir host for the Lyme disease bacterium (Borrelia burgdorferi). Ticks that bite infected mice then transmit Lyme to humans. Reducing rodent populations around your home directly reduces tick-borne disease risk. White-footed mice also carry hantavirus, transmitted through dried droppings and urine.
The dominant mouse species in Rockland County's suburban and wooded areas. Brown-backed with white bellies and feet. They're the primary Lyme disease reservoirâmaking them a health concern beyond typical rodent issues. Excellent climbers that easily access attics via trees and downspouts. Most common in homes near Harriman State Park, Hook Mountain, and the Ramapo Mountains.
Smaller and grayer than white-footed mice. Better adapted to living permanently indoors and can establish year-round colonies in Rockland County homes without ever going outside. They produce 5-10 litters per year, each with 6-8 pups. Prefer ground-level nesting in kitchens, utility rooms, and behind appliances. The species most responsible for food contamination.
Present in Rockland County's more developed areasâparticularly in the villages of Spring Valley, Haverstraw, and commercial zones. They burrow along foundations and enter through floor drains, damaged sewer lines, and gaps around basement pipes. Larger and more destructive than mice, they gnaw through plastic pipes, electrical wiring, and even concrete.
While not rodents in the pest control sense, gray squirrels cause significant problems in Rockland County attics. They chew through soffit vents, fascia boards, and roof edges to nest in attic spaces from November through March. Their gnawing damages wiring and creates fire hazards. We handle squirrel exclusion as part of our wildlife management services.
Late summer (August-September) is idealâbefore the fall invasion begins. However, exclusion work is effective any time of year. If you're already hearing mice in October or November, we combine immediate trapping with exclusion to stop new entries while eliminating existing populations.
Cats may catch occasional mice but don't solve infestations. Mice breed faster than cats hunt, and they nest in wall voids, attics, and crawl spaces where cats can't reach. We've treated many homes with cats where mouse populations numbered in the dozensâthe mice simply avoided open areas.
Not directly from the mice themselvesâLyme disease transmits through tick bites, not mouse contact. However, mice bring ticks into your home. White-footed mice commonly carry deer tick nymphs, and those ticks can drop off mice inside your house and attach to people or pets. Reducing mouse populations around your property directly reduces tick density.
Nighttime scratching in walls or ceilings is most commonly mice (light, rapid scratching) or flying squirrels (heavier thumping, mostly in attics). Raccoons produce louder, more deliberate sounds. Bats create light fluttering sounds, usually in walls near rooflines. We identify the species during inspection before recommending treatment.
A pair of mice in October becomes 20+ by spring. Professional exclusion and trapping stops the cycle before populations explode.
Call (329) 210-4481