Barrier sprays reduce adult pressure for 21 to 30 days. Unaddressed larval sources in standing water replenish the adult population every 7 to 14 days. Show Me Pest Control's Wells program reduces both -- and shows you which water sources to eliminate between visits.
Standing water -- gutters, containers, low-lying depressions
Subsurface in standing water -- feeding, developing
Pre-adult stage -- still in standing water, not yet flying
The mosquitoes you see and feel -- only 5% of the problem

Barrier spray handles the adult population. Larval source reduction handles the breeding population. Both are addressed on every visit.
Larval Source Identification -- We walk your property and identify every standing water source where mosquitoes are actively breeding: blocked gutters, low-lying depressions that hold water after rain, ornamental ponds, tarps, containers, children's play equipment, and tree hollows. Most properties have 5 to 12 larval sources the homeowner has not identified. We document every one.
Professional Residual Barrier Treatment -- We apply EPA-registered adulticide to the shaded vegetation, underbrush, deck soffits, fence lines, and ground cover where adult mosquitoes spend 95% of their daylight hours resting. Our professional formulations carry a 21 to 30 day residual under normal conditions -- significantly longer than most consumer products.
We treat water features that cannot be drained with Bti-based larvicide -- a biological product registered for use near fish and wildlife. The larvae never reach adulthood. The adult treatment handles the rest.
Monthly programs work because the adult knockdown from each treatment overlaps with the setup for the next application. We calendar your visits to maintain below-threshold adult pressure throughout the season, adjusting frequency based on rainfall, larval source load, and your outdoor activity schedule.
A single female mosquito can lay 100 to 300 eggs in one session, depositing them in any standing water large enough to cover a coin. Those eggs develop from larva to adult in 7 to 14 days depending on water temperature. The key insight here is scale: a property with five or six unaddressed standing water sources -- a clogged gutter, two low depressions in the lawn that hold water after rain, an ornamental container, and a tarp fold -- is producing hundreds of new adult mosquitoes every week regardless of how often the vegetation is sprayed. The larvae in those water sources are insulated from any surface treatment applied to the yard and landscape. Gutters are the most consistently overlooked source on residential properties -- they hold warm, organic-rich water and are rarely inspected during a mosquito service visit. A single 20-foot gutter section holding stagnant water can produce thousands of adults per week during peak season.
Barrier sprays are effective for the population of adults currently present in the vegetation at the time of treatment and for the adults that emerge and contact treated surfaces during the residual period. What they do not address -- and cannot address -- is the larval population actively developing in standing water on and around the property during that same window. Larvae in standing water are completely protected from surface adulticide applied to vegetation. They emerge as adults when their development is complete and populate the vegetation. If no larvicide program is in place, the larval pipeline is continuously producing new adults on a two-week cycle throughout the season.
Previous mosquito service did not last in Wells? Call +1-866-315-0243. Our two-part protocol addresses both adult knockdown and larval source reduction -- the combination that lasts.
The biggest larval source most homeowners miss is the gutter. A single gutter section holding stagnant water after rain can produce more adults than all other sources on the property combined. After gutters, the sources we most commonly find are: lawn depressions that hold water for a week after irrigation or rain, ornamental pots without drainage holes, stacked containers in the side yard, and tarps or covers that sag and pool water. Each of these is assessed on the property walk, and the larvicide or source elimination plan is documented for you.
Disease context is relevant to why professional mosquito control is a health measure and not solely a comfort one. West Nile virus is transmitted by Culex mosquitoes that are established throughout Wells, MN, with cases confirmed every season. The risk level varies by county and by year depending on bird population dynamics and temperature patterns. Eastern equine encephalitis, while less common, has a severe outcome profile and circulates in regions of Wells, MN with appropriate habitat. The correct framing for mosquito control is not that every bite carries a specific risk -- it does not -- but that maintaining mosquito pressure below a certain threshold across a full season reduces cumulative bite exposure and the associated risk of vector-transmitted disease. A program that keeps adult populations consistently low across the full season is more effective from a health standpoint than a single treatment before a specific outdoor event. Show Me Pest Control structures programs to provide continuous pressure reduction from the beginning of the mosquito season through the first seasonal cold that collapses the active population.

We locate your larval sources, assess adult resting zones, and explain both halves of the treatment plan before starting.
Call +1-866-315-0243Six services covering adult knockdown, larval source treatment, and recurring seasonal programs.

We find the sources before we spray -- because treating the adults without addressing the larvae produces a two-week result instead of a sustained one.
Long-residual professional formulations applied to all resting zones on the property in a single visit.
Biological larvicide is species-specific to mosquitoes and related flies. It is registered for use near fish and wildlife and does not harm aquatic ecosystems.
Monthly program timing ensures each treatment is applied before the residual from the previous one expires -- continuous below-threshold adult pressure through the season.
Single-visit barrier treatment applied 24 to 48 hours before an outdoor event. Knocks down adult mosquitoes in the vegetation and provides residual coverage for the duration of the event and several days beyond.
Combined barrier treatment addressing both mosquitoes and ticks in the same vegetation zones during the same visit. Both pests rest in low shaded vegetation and are controlled with the same professional residual application.
The sequence that produces lasting mosquito pressure reduction.
Every standing water source identified and documented. Adult resting vegetation zones assessed. Larvicide applications and source eliminations planned before treatment begins.
Residual barrier applied to all identified adult resting zones in a single visit.
Larvicide applied, source elimination guidance provided, larval pipeline addressed in the same visit as the barrier spray.
Follow-up timing is set to maintain residual coverage. You receive advance notice before each visit and can adjust as needed.
Three outcomes from Wells customers -- including one who had already tried a competitor's service.
We had tried two spray companies. Both worked for about 10 days. Show Me Pest Control found 7 standing water sources on our property we did not know about -- including gutters holding water we had never checked. Treated all the sources, applied the barrier spray, scheduled monthly visits. First full summer we have actually used the backyard.
We were skeptical that a treatment 2 days before the party would make a difference. It made a complete difference. Four-hour outdoor evening graduation party, nobody got bitten. Show Me Pest Control event prep treatment. Now on the monthly program for the season.
We have an ornamental pond in the backyard. The previous mosquito service would not treat it -- they said they were not authorized to apply anything near water. Show Me Pest Control applied Bti to the pond, treated all the resting vegetation, and explained what mosquito dunks to use between visits. The pond is still there. The mosquitoes from it are not.

Two-part protocol -- adults and larvae addressed in one visit. Call to schedule your Wells property assessment and first treatment.
Call +1-866-315-0243