Pest Control in Rosemount, Minnesota

A township, a powder plant and a research farm

Rosemount’s own 150th-anniversary history traces the community to April 6, 1858, when Dakota County established it as one of its first 17 townships; residents organized on May 11 of that year and picked the name Rosemount over Saratoga. A village of the same name formed in 1866 on the Minnesota Central Railway line, Andrew Keegan built the first house in it that year, and the village was incorporated in 1875. In 1871 twelve sections of Inver Grove Township were attached, carrying Rosemount Township east to the Mississippi River. The village and township merged on January 21, 1971, and the combined community became a city by state statute three years later.

The event that shaped modern Rosemount came during World War II. The city’s history notes that land taken for the Gopher Ordnance Works, a smokeless-powder plant, amounted to 15 percent of Rosemount’s land. The University of Minnesota’s Rosemount Research and Outreach Center says farm families began leaving their homes in May 1942 so the federal government could prepare the site, that the war ended just as the plant came on line, and that in 1947–1948 the government deeded about 7,686 acres of the property to the University. That land, now known as UMore Park, has hosted University research ever since, with a concept master plan completed in 2009.

South of UMore Park lies Vermillion Highlands, a 2,822-acre research, recreation and wildlife management area managed jointly by the University and the Minnesota DNR with Dakota County and Empire Township. The University describes rolling ground, woods, farm fields, two significant wetlands draining to the Vermillion River, a restored prairie with pollinator gardens, and a border with Dakota County’s Whitetail Woods Regional Park. Permitted trapping, archery and firearms hunting are used there to manage turkey, deer, pheasant, goose, coyote, raccoon and other animals. For a Rosemount homeowner, the practical point is simple: a great deal of open, managed habitat sits within a short drive, or a short walk, of residential streets.

Housing on the edge of open land

The Census Bureau’s 2020–2024 American Community Survey counts 10,175 housing units in Rosemount and 9,924 occupied households, 8,677 of them owner-occupied, or roughly 87 percent. About half of the housing stock, 5,092 units, was built in 2000 or later, and another 2,042 units date from the 1990s. At the other end, about 11 percent of units were built before 1970, including 302 from 1939 or earlier.

That split explains two different kinds of calls. In the older homes, a licensed company is often looking at stone or block foundations, settled sills and decades of utility penetrations. In newer neighborhoods that back onto fields, retention basins or undeveloped parcels, the pressure comes from outside: rodents and insects moving off open ground as the seasons change. University of Minnesota Extension notes that mice seek warm shelter in sheds, garages and homes as fall approaches, that they fit through the tiniest openings, and that barriers must be airtight to work. It describes traps as effective and cautions that poisoned mice can be eaten by pets, birds and other animals.

Species matters near farmland. The Minnesota Department of Health says the common house mouse does not carry hantavirus, while the deer mouse lives in fields, farm buildings and seldom-used cabins. Anyone clearing droppings from a shed or outbuilding that borders open land should follow careful cleanup practices rather than sweeping dry material. Outdoors, Extension calls voles very common in yards and fields, notes that one female can produce 5 to 10 litters a year, and recommends removing woodpiles, trimming grass and shrubs, and keeping the ground under bird feeders clean.

Why water in Rosemount stays put, and what that means for mosquitoes

Rosemount drains differently from most of its neighbors. The city’s 2018 Surface Water Management Plan states that runoff in the city is land-locked with no positive outlet, and that most of its many deep depressions have no natural overflow. The city’s stormwater page says that because much of Rosemount does not naturally drain to rivers and streams, its engineered ponds carry the job of preventing flooding and treating runoff. The plan lists the Mississippi River, Keegan Lake, White Lake, Birger Pond, Schwarz Pond and Wachter Lake as the major water bodies, alongside many unnamed basins, and puts the city’s area at about 35 square miles.

Mosquito control over that water belongs to the Metropolitan Mosquito Control District (MMCD), which the Legislature created in 1958 and which serves seven metro counties, Dakota among them. The District’s field facility for this part of the metro is in Rosemount itself: MMCD says its Rosemount facility runs four crews that cover all of Dakota County and parts of Hennepin and Scott counties, across cities, suburbs, woods and farmland. MMCD is funded through property taxes with no separate charge and can be reached at (651) 645-9149.

The District focuses on larvae in wetlands rather than on yards. Its FAQ says it does not spray private property unless there is a threat of mosquito-borne disease, and that any treatment for extremely high numbers benefiting more than one household is at its discretion. Its Resident’s Guide also notes that not every wetland breeds mosquitoes; a deep pond with only a thin band of cattails probably needs no treatment. What does breed them is shallow water that lingers: MMCD says a low spot holding water for more than three days can produce mosquitoes, along with clogged gutters, tarps, buckets, bird baths and tires. It identifies Culex, which uses containers, tires and catch basins, as the mosquito most likely to carry West Nile virus in Minnesota.

Pollinator policy and pest management near you

Rosemount has put its pesticide preferences in writing. Under Resolution 2022-05, adopted January 18, 2022, the city committed to careful, standards-based pesticide use in public spaces and to refraining from neonicotinoid pesticides, with an exception for emerald ash borer treatments. On March 25, 2025, it adopted a resolution supporting the National Wildlife Federation’s Mayors’ Monarch Pledge. Through its Mow Less May program the city also pauses enforcement of its 8-inch lawn height rule in May for residents in good standing, and it asks residents to wait until after Memorial Day to clean up gardens so overwintering pollinators can emerge.

Those policies govern city land, not private yards, but they are a useful frame when hiring. A Rosemount homeowner who follows the pollinator program can ask a licensed company to target a specific pest, avoid spraying flowering plants, and time treatments so they do not conflict with a no-mow period. On the city’s own stormwater ponds, Rosemount says most mowing waits until mid to late summer, after the sensitive nesting period for ground-nesting birds and pollinators; residents should leave those public areas to city crews.

Emerald ash borer arrived in 2018

The city reports that the Minnesota Department of Agriculture confirmed emerald ash borer in a tree on private property near Rosemount High School on May 18, 2018. Dakota County is inside the state quarantine, so ash logs, branches, chips and stumps cannot be moved out of the zone. Symptoms the city lists include splitting bark, increased woodpecker activity, D-shaped exit holes, S-shaped galleries under the bark and dieback in the upper third of the canopy. Owners are responsible for treating or removing ash trees on their own land, and the available treatments protect a tree for only one or two years at a time. The city directs residents who suspect an infestation to a professional tree service or to Rosemount Public Works at (651) 322-2022.

Coyotes, stray cats and what the city handles

Rosemount says coyote sightings have increased in the city and surrounding communities over the past few years, that coyotes are most active from dusk into early morning and in hot summer weather, and that their main food is small and medium mammals such as mice and skunks. The city asks residents to secure garbage, wildlife feeders and outdoor pet food, to supervise small pets, and to haze coyotes that do not run from people. City ordinance prohibits discharging any firearm within city limits, and aggressive coyote behavior should be reported to Rosemount police through 911.

Animal complaints in general also go through 911, where the city’s Community Service Officers handle animal control. Since a 2011 Council action, cats are no longer licensed and the city no longer collects stray cats. Squirrels in an attic or a raccoon under a deck are a private matter: Minnesota DNR rules allow a landowner or occupant to take certain damaging protected animals without a license if a Conservation Officer is notified within 24 hours, and squirrels, rabbits and hares require no report. With firearms off the table inside the city, most Rosemount wildlife jobs come down to exclusion and live trapping by a company that offers that service.

Chickens, garbage and the rodent rules already on the books

Rosemount allows backyard chickens by permit: no more than five hens, no roosters, birds shut in a shelter from sundown to sunrise, and coops screened from neighbors. The city specifically requires chicken grain and feed to be kept in a rodent-proof container and waste to be disposed of at least weekly. Its garbage rules take the same line: waste containers must have lids kept closed to prevent the attraction or harborage of rodents, insects and other vermin, single-family and duplex households must keep containers in a garage or behind the front line of the house, and carts may go to the curb only the evening before collection. A licensed exterminator treating a rodent problem on a Rosemount property will usually check these basics first.

ZIP codes served

Rosemount City Hall, at 2875 145th Street West, and the University’s Rosemount Research and Outreach Center both use ZIP code 55068. Requests from bordering Apple Valley, Eagan, Inver Grove Heights, Coates and Empire Township addresses are routed to licensed companies that cover those areas.

Verifying that a Rosemount exterminator is actually licensed

The Minnesota Department of Agriculture requires a license for anyone who commercially applies pesticide as a structural pest control applicator. Structural licenses come at three levels: Company, Master and Journeyman. Every applicator must be employed by a licensed Structural Pest Control Company, and that company must employ at least one licensed Master, provide workers’ compensation information and meet financial responsibility requirements. A Journeyman needs two years of licensed experience before applying to become a Master.

Yard mosquito and tick work falls under a separate license. MMCD’s Resident’s Guide tells homeowners to use the MDA license lookup and select “Commercial Pesticide Applicator – Mosquitoes, Black Flies, and Ticks.” Before anyone treats a Rosemount home or yard, ask for the company name and the applicator’s name and look both up. The companies Exterminator Dispatch routes calls to are expected to hold the license for the work they perform; the lookup takes a couple of minutes.