Pest Control in Novi, Michigan

A young city built around lakes, wetlands and woods

Novi was a village long before it was a city. According to the City of Novi’s own history, cityhood elections failed in 1959 and 1962 before voters approved incorporation 694 to 283 in May 1968, with the city charter taking effect in 1969. The 1970 census counted 9,668 residents. By the 2020 Census that figure had grown to 66,243 on about 30.2 square miles of land, and the Census Bureau estimated 67,319 residents in July 2025.

Most of that growth is recent, and it shows in the housing. American Community Survey estimates for 2019–2023 count roughly 27,900 housing units in Novi. Only about 8 percent were built before 1970, while more than 55 percent went up in 1990 or later. About half of all units are detached single-family houses and another 12 percent are attached single-family homes such as townhouses and condominiums. Census QuickFacts puts the owner-occupied rate at 66.3 percent.

That profile changes which pest calls come in. Newer homes are less prone to the settled fieldstone foundations and century-old porches that invite mice into older Detroit-area suburbs. The pressure in Novi comes from outside: houses sited next to ponds, detention basins, wetlands and wooded buffers that the city has spent decades protecting.

Walled Lake and the water that feeds Novi’s mosquito season

Walled Lake is the largest lake in Novi. A water quality report prepared for the City of Novi and the City of Walled Lake describes it as a 652-acre lake lying partly in the City of Walled Lake and partly in Sections 2 and 3 of Novi, with a maximum depth of about 50 feet and roughly 24,200 feet of shoreline. It is fed from Mud Lake at its south end and drains out through Beaver Creek at the southwest corner.

The south shore is public ground. Lakeshore Park, the largest park in the city, has a swimming beach on Walled Lake and roughly 10 miles of mountain bike trail through wooded terrain. Two-tenths of a mile away, the 11-acre Pavilion Shore Park opened on August 24, 2013, on the site of the old Walled Lake Amusement Park and Walled Lake Casino.

Beyond the lake, the City of Novi says it lies within two major watersheds, the Rouge River and the Huron River. Many subdivisions and commercial sites were built with their own storm drain systems and detention basins, and the city publishes a maintenance manual for the property owners responsible for them. Wetlands are regulated under Chapter 12, Article V of the city code, and the city keeps an official Regulated Wetlands and Watercourse Map. Lakes and protected wetlands are not the same as stagnant water, but ponds, basin edges, clogged gutters and forgotten containers in shaded backyards all give mosquitoes somewhere to breed through the summer.

What the city already does about mosquitoes, and what it leaves to homeowners

Novi has its own mosquito control program. According to the city, Department of Public Works staff drop charcoal-sized larvicide pellets through the grates of city storm drains to kill mosquito larvae, and the treatment is repeated each summer. A May 2026 council memo describes the briquettes as distributed annually in late spring to treat catch basins and standing water areas, and notes that Novi works with Oakland County Health Division officials and seeks partial reimbursement through the county’s West Nile Virus Fund. City staff also promote source reduction at homeowner association meetings and city events.

What the city does not do is treat private yards. Its program page asks residents to empty water from toys, buckets, tires, unused pools, gutters, birdbaths and boats, keep screens in repair, and limit time outdoors at dusk and dawn. The stakes are real: on August 18, 2025, Oakland County announced its first human West Nile virus case of the year in a resident who had not traveled, and the county health officer urged residents to guard against bites until the first hard frost.

For homeowners who want more than personal protection, a licensed company can inspect drainage, containers and shaded harborage and propose a yard program. In Michigan, outdoor mosquito work falls under MDARD Category 7F, Mosquito Management.

Brown marmorated stink bugs: Novi’s fall invader

Michigan State University Extension describes the brown marmorated stink bug as a shield-shaped insect about the size of a dime, accidentally brought to North America from Asia and first detected in Michigan in 2010. Starting in early fall, the bugs gather on and inside houses, sheds and barns, often in large numbers, looking for a place to spend the winter.

MSU Extension is clear about what they are and are not. They do not bite people or pets, do not cause structural damage and do not reproduce inside homes. The problem is the pungent odor they produce and the sheer numbers that can collect in one house. MSU’s advice centers on exclusion: blocking gaps around window air conditioners, repairing holes in screens and sealing openings before the fall flight, then vacuuming any that get in and emptying the bag or canister right away.

That makes a Novi stink bug call in September or October mostly an exclusion question. A licensed company can walk the exterior, point out the siding joints, utility penetrations, attic vents and window frames the bugs are using, and explain which fixes are carpentry and which are pest work.

Mice and the protected woodland edge

Novi’s Woodland Protection Ordinance, Chapter 37 of the city code, protects every tree of 8 inches in diameter or more inside a regulated woodland. The city’s homeowner guidance goes further: where the City Woodlands Map shows a regulated woodland on part of a lot, that area is to stay in a natural condition, with trees, undergrowth, shrubs, branches and leaves left in place. It cannot be cleared for lawn or play areas or used for dumping yard waste, and a disturbed area may have to be restored at the owner’s expense.

Leaf litter and brushy undergrowth are good cover for mice, and a house backing onto that kind of edge will see more rodent pressure each fall than one surrounded by lawn. Because the woods themselves are off-limits, rodent control in these neighborhoods happens at the house: sealing gaps where utility lines, dryer vents and garage door seals meet the structure, then trapping and monitoring along the foundation. Rodent work that involves pesticides falls under MDARD Category 7D, Vertebrate Pest Management, which covers birds, rats and mice.

ZIP codes served

Verifying that a Novi exterminator is actually licensed

Michigan licenses both the business and the person doing the work. A company making pesticide applications for hire must hold an MDARD Pesticide Application Business License, and each applicator must hold a commercial certification or registration. MDARD credentials expire every third year on December 31 and are renewed by earning recertification credits over the three-year cycle or by retaking the exams.

The category matters as much as the card. MDARD’s category list sets out 7A, General Pest Management, for work in and around homes and food-handling establishments; 7B, Wood Destroying Pest Management, which covers termites and carpenter ants; 7D for birds, rats and mice; and 7F for mosquitoes outdoors. Before work begins in Novi, it is fair to ask for the business license number and the technician’s credential and categories, then check them against MDARD’s Find a Licensed Business search and its public list of certified applicators.