Mosquito Problem in Memphis: Why It Is So Bad and What You Can Do About It

Last updated: March 19, 2026

By James — Founder of Pest Control Pricing

Memphis has one of the worst mosquito problems of any major city in the United States. The city sits at the confluence of the Mississippi River and Wolf River, surrounded by bayous, wetlands, and low-lying flood plains that hold water for weeks after every rain. Shelby County's flat topography means drainage is slow, and standing water accumulates in ditches, retention ponds, abandoned lots, and poorly graded yards across the metro. The result is a mosquito season that runs from late April through October, with peak activity from June through September that can make spending time outdoors genuinely miserable. If you are tired of being driven inside every evening by mosquitoes, professional yard treatment is the most effective option. Prices last updated March 2026.

Why Memphis Has One of the Worst Mosquito Problems in the Country

The Mississippi River

The largest river system in North America runs along the western edge of the Memphis metro. Its flood plain, oxbow lakes, and backwater areas produce astronomical mosquito populations. When the Mississippi rises during spring flooding, water spreads across low-lying areas on both the Tennessee and Arkansas sides, creating temporary pools that breed mosquitoes by the millions. Even in years without major flooding, the river's permanent backwater areas, sandbars, and riparian zones support year-round mosquito breeding. Harbor Town and Mud Island, built directly on the river, experience some of the most intense mosquito pressure in the entire metro.

The Wolf River and Wolf River Greenway

The Wolf River runs through the heart of the Memphis metro from Germantown through Midtown, lined with wetlands and bottomland hardwood forest that is prime mosquito breeding habitat. The Wolf River Greenway, while a valuable recreational asset, creates a mosquito corridor running through residential neighborhoods. Properties within a quarter mile of the Wolf River consistently experience higher mosquito pressure than those further from the corridor. Neighborhoods like Cordova, Germantown, and parts of Midtown that border the Wolf River system face particularly heavy mosquito activity from May through September.

Nonconnah Creek

Nonconnah Creek runs through South Memphis and Southeast Shelby County, and drainage issues along its length create persistent standing water problems. The creek frequently backs up after heavy rain, flooding adjacent low-lying areas and creating temporary mosquito breeding pools that can persist for weeks. Neighborhoods along the Nonconnah Creek corridor, including Whitehaven and parts of Southeast Shelby County, deal with some of the heaviest mosquito pressure on the south side of the metro.

Flat Topography and Clay Soils

Shelby County is flat with heavy clay soil that holds water on the surface for days after rain. Unlike cities built on slopes where water drains naturally, Memphis' level terrain means every low spot in every yard, ditch, and vacant lot becomes a potential mosquito breeding site after a rainstorm. The clay soil prevents water from percolating into the ground quickly, leaving surface pools that persist long enough for mosquito larvae to complete their development cycle (7 to 10 days from egg to adult). Memphis averages 54 inches of rain per year, ensuring that these surface pools are replenished regularly throughout the warm season.

Long Hot Humid Summers

Memphis averages above 80 degrees Fahrenheit from May through September with humidity regularly above 70%. These conditions are ideal for mosquito breeding, providing 5 to 6 months of peak reproductive conditions. Unlike northern cities where mosquito season lasts 3 to 4 months, Memphis' extended warm season allows mosquito populations to build through multiple generations, reaching their highest density in August and September before cooling temperatures in October finally begin reducing activity. For a full overview of pest control costs in Memphis, see our local pricing guide.

Mosquito Species in Memphis

Asian Tiger Mosquitoes (Aedes albopictus)

The Asian tiger mosquito is the most aggressive daytime biter in Memphis. Black with distinctive white stripes on its legs and body, this species breeds in small containers of standing water: flower pot saucers, bird baths, tires, clogged gutters, kids' toys, and any object that holds even a tablespoon of water. Unlike some mosquito species that are most active at dawn and dusk, Asian tiger mosquitoes bite throughout the day, making outdoor activity miserable from morning through evening during peak season. They are aggressive, persistent biters that will follow a host and bite multiple times. In Memphis, Asian tiger mosquitoes are found in every residential neighborhood and are the species most commonly encountered during backyard activities.

Southern House Mosquitoes (Culex quinquefasciatus)

The Southern house mosquito is the primary nighttime biter in Memphis and the main vector for West Nile virus in the Mid-South region. This species breeds in standing water including storm drains, ditches, unmaintained swimming pools, and any stagnant water source larger than a few inches across. West Nile virus has been documented in Shelby County, and the Southern house mosquito is the primary transmission vector. This species is most active from dusk through dawn, which is why many Memphis residents notice mosquitoes becoming especially aggressive as the sun goes down. For broader information on mosquito treatment costs nationwide, see our comprehensive guide.

Floodwater Mosquitoes

Multiple Aedes species in the Memphis area emerge in massive numbers after heavy rain or river flooding events. Their eggs are deposited in dry areas that flood periodically, and the eggs can remain viable for months waiting for water. When flooding occurs, these eggs hatch simultaneously, producing enormous hatches of aggressive biting mosquitoes within days. Floodwater mosquitoes can travel several miles from their breeding sites, meaning even well-maintained properties get hit hard after major rain events. The spring flooding season along the Mississippi and Wolf River corridors can produce floodwater mosquito hatches that affect neighborhoods miles from the actual floodwater. For information on mosquito control service costs, see our dedicated pricing guide.

Memphis Neighborhoods with the Worst Mosquito Problems

Harbor Town and Mud Island

Built directly on the Mississippi River, these neighborhoods are surrounded by water on three sides. Residents of Harbor Town deal with some of the worst mosquito pressure in the entire metro. The combination of river proximity, landscaped water features within the development, and the open exposure to river-bred mosquitoes makes professional treatment essential rather than optional. Mosquito misting systems are more common here than in most Memphis neighborhoods because of the intensity and consistency of the mosquito pressure.

Midtown, Cooper-Young, and Overton Park Area

The Wolf River Greenway runs nearby, and the mature tree canopy throughout Midtown holds moisture and creates the shaded, humid microclimates that mosquitoes prefer. Older homes in Cooper-Young and the surrounding neighborhoods often have uneven grading that creates low spots where water pools after rain. Overton Park's wooded areas and the Lick Creek corridor support mosquito populations that spill into surrounding residential streets. Evening outdoor dining and entertainment in the Cooper-Young district is heavily impacted by mosquitoes from June through September.

East Memphis and Germantown

The Wolf River corridor runs through both communities, and the large lots common in East Memphis and Germantown often include landscaping features, ornamental ponds, and irrigation systems that create standing water. Drainage ditches along major roads in these areas hold water after storms. Germantown's tree-lined streets and wooded neighborhoods create the shaded conditions mosquitoes seek during the heat of the day. Despite being among the more affluent areas of the metro, East Memphis and Germantown face mosquito pressure that matches or exceeds many lower-income neighborhoods, driven by the Wolf River corridor and extensive irrigated landscaping.

Whitehaven and Southaven

The Nonconnah Creek drainage corridor creates persistent mosquito breeding habitat through the southern part of the metro. Flat lots with poor drainage in older Whitehaven neighborhoods hold standing water after every rain. Southaven, across the Mississippi state line, has experienced rapid suburban development with retention ponds that serve as permanent mosquito breeding sites. These retention ponds, required by stormwater management regulations, are often the single largest mosquito source in newer Southaven subdivisions.

Cordova and Bartlett

Newer suburban development in Cordova and Bartlett has created extensive retention pond networks that are primary mosquito breeding sites. Development near Wolf River tributaries compounds the issue. Cordova in particular experiences heavy mosquito pressure from the combination of suburban retention ponds, the Wolf River corridor to the south, and extensive irrigated landscaping on larger lots. Bartlett's older established neighborhoods have mature trees and sometimes neglected drainage features that create localized mosquito hotspots.

Collierville

Collierville's extensive planned developments include numerous man-made ponds, lakes, and water features that serve as both community amenities and permanent mosquito breeding sites. The town's aggressive growth into former agricultural land has created a landscape rich in both irrigated landscaping and stormwater management features, both of which support mosquito populations. Professional treatment demand in Collierville is among the highest in the metro on a per-household basis.

Downtown and South Main

Downtown Memphis' proximity to the Mississippi River creates baseline mosquito pressure that is difficult to mitigate in the urban environment. Industrial lots and vacant properties in the surrounding area accumulate standing water. The South Main Arts District, while revitalized, is surrounded by areas where drainage and lot maintenance vary, creating nearby breeding sites. Rooftop patios and outdoor dining venues downtown are particularly impacted during peak mosquito season.

Frayser and Raleigh

Older infrastructure in these north Memphis neighborhoods includes drainage systems that may not function optimally, holding water longer than designed. Abandoned and vacant properties, more common in these areas than in other parts of the metro, accumulate standing water in unmaintained structures, old tires, and debris. These neighborhood-wide breeding sources make individual property treatment less effective because mosquitoes constantly reinvade from nearby untreated areas.

What Works for Mosquito Control in Memphis

Professional barrier spray is the standard residential mosquito treatment in Memphis. A technician applies a residual insecticide to vegetation, fences, under decks, around patios, and along the perimeter of the property. The product kills mosquitoes on contact and repels them from treated surfaces for 21 to 30 days. Barrier spray reduces mosquito activity on a treated property by 85 to 90%. The treatment takes 15 to 30 minutes for an average-sized Memphis yard. Most Memphis pest control companies offer both per-visit pricing ($75 to $150) and seasonal packages ($400 to $900 for 6 to 8 treatments). Seasonal packages typically save 20 to 30% compared to individual visits. For details on mosquito misting system costs, see our dedicated guide.

Larvicide treatment targets mosquito larvae in standing water sources on your property before they become biting adults. Professional services often include larvicide application as part of barrier spray service. For DIY, Bti (Bacillus thuringiensis israelensis) dunks or granules can be placed in ponds, rain barrels, bird baths, and drainage features. Bti is a biological larvicide that is safe for fish, pets, birds, and other wildlife. A $20 to $50 investment in Bti products covers an entire season for most properties.

Mosquito misting systems are automated perimeter systems that spray a fine mist of insecticide from nozzles installed around the property, typically on a timer set for dawn and dusk when mosquitoes are most active. Installation costs $2,000 to $5,000 depending on property size. Misting systems are most common and most effective for large Memphis properties, homes adjacent to water features or the river corridor, and outdoor entertaining areas where consistent, hands-off mosquito control is desired. Harbor Town, East Memphis, and Germantown properties frequently install misting systems due to the intensity of local mosquito pressure.

What Does NOT Work for Mosquitoes in Memphis

The only approaches that meaningfully reduce mosquito populations on a Memphis property are eliminating standing water (free), professional barrier spray (the most effective single intervention), and larvicide treatment of water features you cannot drain. Everything else is either ineffective or provides such marginal benefit that it does not justify the cost or effort. For a comparison of professional versus DIY pest control, see our DIY vs professional guide.

Eliminating Breeding Sites on Your Memphis Property

This is step one before any professional treatment, and it is free. Walk your property after a rainstorm and eliminate every source of standing water.

• Empty and flip flower pot saucers after every rain
• Clean and refresh bird baths weekly, or add a Bti dunk
• Clear clogged gutters (a single clogged gutter can produce thousands of mosquitoes per week)
• Fix low spots in your yard that hold water after rain (fill with soil or improve drainage)
• Drain or treat any decorative ponds or water features with Bti larvicide
• Empty kids' toys, wheelbarrows, buckets, and any container that holds water after rain
• Check for water-holding tree holes in mature trees (pack with sand or treat with Bti)
• Ensure your property drains away from the foundation (standing water near the house breeds mosquitoes and attracts other pests)
• Cover rain barrels with fine mesh screening
• Maintain swimming pools with proper chlorination and filtration (abandoned or neglected pools are massive mosquito breeders)
• Remove old tires, unused containers, and any debris that collects water

Even with perfect source reduction on your property, mosquitoes from neighboring properties, public drainage, and the river corridors will still reach you. A single neighbor with a neglected pool or clogged gutters can produce enough mosquitoes to impact your entire block. That is why professional barrier treatment is necessary in Memphis for meaningful outdoor comfort. For more on mosquito prevention, see our guide on how to get rid of mosquitoes.

When to Start Mosquito Treatment in Memphis

Most Memphis pest control companies recommend starting barrier spray treatments in late April or early May, before mosquito populations peak. If you wait until June or July when mosquitoes are already unbearable, you are playing catch-up against an established population. The best approach is to schedule your first treatment in late April, then maintain monthly treatments through October. That gives you 6 to 7 treatments for the season.

Treatment every 21 days provides better protection than every 30 days because barrier spray effectiveness begins declining after 3 weeks, especially during Memphis' hot, rainy summer months when rain and UV exposure degrade the product faster. If you notice increased mosquito activity before your next scheduled treatment, contact your provider. Most Memphis mosquito treatment companies will re-treat between scheduled visits if heavy rain compromises the previous application.

The Shelby County Health Department typically begins its public mosquito control operations in May. Public spraying targets roads, parks, and drainage infrastructure. It does not cover residential yards. Think of county spraying as a baseline public health measure and professional yard treatment as the layer that makes your specific outdoor space usable. For guidance on ongoing pest management, see our pest control plans guide.

Choosing a Mosquito Treatment Company in Memphis

• Verify Tennessee Department of Agriculture commercial pesticide applicator license (required for any company applying pesticides commercially in Tennessee)
• Ask what active ingredient they use for barrier spray (bifenthrin and permethrin are common and effective)
• Ask about their approach to standing water on your property (a good company will identify and address breeding sites as part of the service, not just spray)
• Ask about their guarantee and re-treatment policy (most Memphis companies will re-treat between visits if heavy rain compromises the previous application)
• Ask about their treatment schedule (every 21 days is more effective than every 30 during peak season in Memphis)
• Ask about pet and pollinator safety (treatments should be applied when pollinators are not active, typically early morning or evening, and the product should dry before pets and children use the yard, usually 30 minutes to 1 hour)
• Get estimates from at least 2 to 3 companies
• Ask whether larvicide treatment is included in the service or is an additional charge

Memphis has a competitive mosquito treatment market with both local operators and national chains serving the metro. Pricing is generally consistent across providers, so the main differentiators are response time, re-treatment policies, and whether the service includes standing water assessment and larvicide treatment in addition to barrier spray. For broader guidance on selecting a pest control provider, see our guide on how to find a good exterminator. For state-level pricing context, see our Tennessee pest control cost guide. You can also compare mosquito treatment approaches in Atlanta and Dallas, two other southern cities with severe mosquito pressure. For a full overview of pest control costs nationwide, see our main cost guide.

Frequently Asked Questions