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 Palo Alto 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.
Our property walk identifies every larval source -- including the ones that do not look like water sources. A bag of dirt, a tarp fold, the saucer under a plant pot, a low gutter -- any water that stands for a week produces mosquitoes. We document each source and address them all.
The barrier spray targets where adults rest, not where they fly. Adult mosquitoes spend nearly all of their inactive hours resting in low shaded vegetation near the ground. We treat those zones thoroughly with long-residual professional formulations.
Larvicide Application to Untreatable Standing Water -- Not every standing water source can be eliminated. Ornamental ponds, permanent drainage features, and irrigation catch basins that cannot be drained receive EPA-registered larvicide application -- Bacillus thuringiensis israelensis or surface film products that kill larvae before they reach the adult stage without harming fish, birds, or beneficial insects.
Recurring Seasonal Programs Built Around Your Property -- A single treatment reduces adult pressure for 3 to 4 weeks. A monthly or bi-monthly program maintains that pressure reduction through the full mosquito season. We build the schedule around your specific property's larval source pressure and your peak outdoor use period.
The lifecycle dynamic that makes mosquito control challenging is the speed of development combined with the scale of egg production. Each female mosquito produces hundreds of eggs per week. Those eggs develop in standing water in 7 to 14 days. A property with multiple standing water sources is continuously producing new adults on a two-week cycle. A barrier spray that knocks down the adults in the vegetation breaks one link in that chain -- but the larval sources producing the next generation are unaffected. Addressing the larval sources alongside the adult population is the only way to break both links.
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 Palo Alto? 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 Palo Alto, CA, 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 Palo Alto, CA 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 +1-866-315-0243From single-event preparation to monthly seasonal programs -- the full range of mosquito control in Palo Alto.

Assessment covers gutters, lawn depressions, containers, ornamental features, drainage edges, and any item holding water for 7 or more days.
Professional residual adulticide applied to low vegetation, underbrush, fence lines, deck soffits, and ground cover -- the zones where adult mosquitoes rest during daylight hours. 21 to 30 day residual under typical seasonal conditions.
For water sources that cannot be removed -- ponds, rain barrels, drainage features -- larvicide application prevents the larval pipeline from producing new adults.
We calendar your visits around your peak outdoor use period and adjust frequency based on rainfall and larval source load changes.
Event prep treatment applied 24 to 48 hours before the event date -- not the morning of. Proper timing allows the residual to settle and the treated population to drop before guests arrive.
For properties in areas of Palo Alto, CA with deer tick or lone star tick pressure -- tick and mosquito combined programs provide efficient coverage for both pests.
The sequence that produces lasting mosquito pressure reduction.
Full property assessment precedes treatment. We find the sources your previous service may have missed before selecting the treatment approach.
Professional residual adulticide applied to low vegetation, underbrush, fence lines, and deck soffits. Current adult population knocked down, 21 to 30 day residual provides coverage through the treatment window.
Bti-based biological larvicide applied to ornamental ponds, drainage features, and standing water that cannot be drained. Source elimination guidance provided for water sources that can be addressed by the homeowner.
We schedule the return before leaving. No calling back to book -- the program is in place from day one.
Customers who experienced the two-part protocol for the first time after previous services that treated only one half of the problem.
The backyard was unusable from May through August for three years. We used two different barrier spray services -- they would work for a week or two, then the mosquitoes were back just as bad. Show Me Pest Control walked the property and found 7 larval sources. Two of them were gutters on the back of the house I had not cleaned in two years. After the source treatment plus the barrier: we are outside in the evenings again. On the monthly program now -- third season running.
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.
The ornamental pond was the whole problem. Show Me Pest Control treated it with biological larvicide on the first visit, treated the vegetation, and showed me how to maintain the pond between their visits. The pond is not going anywhere -- but the mosquitoes it was producing are gone.

We find the sources, treat both halves, and schedule your seasonal program. Call +1-866-315-0243.
Call +1-866-315-0243