The abatement ladder
The order of operations never changes
Fenwatch was started in 2013 by two technicians off the county mosquito crew, and the district’s hierarchy came with them: identify what is biting, remove or treat the water it breeds in, exclude and rest-trim where it shelters, and only then put product on the foliage line where the adults rest. A truck that fogs first is selling chemistry; a route that surveys first is selling a quieter yard. Every work order lists which rungs your property needed — and which it didn’t.
Survey the water
Every bucket, gutter, French drain, stock tank and ditch mapped and photographed. A mosquito needs a half-inch of standing water; the map is where control actually happens.
Dunk the source
Bacterial larvicide dunks and bits in the water that can’t be drained — lethal to mosquito larvae, harmless to dogs, birds, frogs and the pond fish.
Rest-trim the line
Undersides of the foliage where adults rest by day, treated with a residual — the perimeter stays green and the biting stops at the property line.
Fog last, if at all
A barrier treatment on the foliage, never a broadcast fog over open water — and never on a windy evening, when it would drift onto the neighbor’s bees.
Services & rates
Route rates, printed like a tide table
Rates off last season’s route sheets in Marrowfen and Gullfleet. Every line includes the water survey, the work-order map and the 21-day comeback clause; the Basin Plan adds call-backs for as long as it runs.
Yard mosquito program$74 / visit
Larvicide in every mapped water source plus a residual on the foliage line, April through September, every three weeks
Standing-water service, one-time$119 flat
Full property survey, dunks and bits in what can’t be drained, drainage advice for what can
Wasp & hornet dusk removalfrom $92
Ground and eave nests treated at dusk when the colony is home, removed on the second visit, the void sealed
Tick sweep$138 / visit
Perimeter and tree-line treatment plus a drag-cloth count before and after — deer ticks in the Reedmere grass are a March and October problem
Barn & stable program$165 / month
Fly parasites in the manure, bait stations at the walls, residual on the resting lines — biting flies attacked at their actual source
The Basin Plan$48 / month
Every service above on a three-week route, unlimited call-backs, wasp nests included, priority after spring floods
2025 — 2026 season
From the dusk route
Six stops off last summer’s route sheets, photographed the evening of the treatment. Nothing staged — the marsh supplies the light.
The route, in figures
How it goes
One season, one route
The same sequence on every job — the only variable is your project.
Late March
The water audit
Snowmelt and the first warm rain: every ditch, stock tank and gutted gutter mapped, drained where it can be, dunked where it can’t. The cheapest mosquito of the year is the one that never becomes one.
Mid-May
The foliage line
First residual treatment on the resting lines as the hatch comes off the marsh. Interior placements are rarely needed and rarely used — this is an outdoor problem with an outdoor cure.
Late June
The wasp watch
Founding queens and the first paper nests treated at dusk, the eaves banded so the next queen shops elsewhere. Nest down, void sealed, same visit.
August
The flood hatch
When the Reedmere rises, floodwater mosquitoes hatch in the grass within 72 hours. Route priority goes to the flooded sections, and the Basin Plan yards are first in line.
October
The rodent proofing
Field mice move to the warm side of every foundation at first frost. Sweeps, copper mesh and weep screens close the route — the winter file that prevents the spring one.
We are the last house before the marsh and we used to be eaten alive by June. Fenwatch mapped the water first — found an old stock tank and a clogged French drain we had forgotten existed — and the yard has been usable every summer since. The work-order map is on the fridge.
The wasp nest in the playhouse eave was the size of a football and full on a Sunday. They came at dusk, treated while the colony was home, and the nest was down and the void sealed before the next weekend. No stings, no drama, one invoice that explained itself.
Three years on the Basin Plan. The dunks go in the horse troughs, the bait stations stay at the barn walls, and the flies that used to ride the horses into June simply do not. It is the least interesting line in the budget and the one I would keep last.
Before you call
Asked at the screen door
The five questions every dusk route raises. If yours is missing, dispatch answers the number at the bottom of the page, seven nights a week in season.
Is the yard treatment safe for the dog?
Yes, with one rule: keep pets off the treated foliage until it is dry — 30 minutes in basin humidity, less in sun. The placements are on the underside of leaves where dogs do not lick, the larvicide in the water is a bacterium that affects mosquito larvae and nothing with a backbone, and the pond fish never notice it. Work orders list every product by name before it is opened.
What about the bees?
Nothing is blooming when the foliage line is treated — the route runs evenings for exactly that reason. Hives are flagged on the route sheet as no-go ground for the day, flowering containers get skipped until they stop, and a broadcast fog over open water is something the license forbids and we have never done.
Why not just fog the whole yard?
Because a fog kills the adults flying tonight and does nothing about the larvae in the stock tank tomorrow. The district order of operations — water first, foliage second, chemistry last — is why route yards stay quiet between visits and fogged yards do not. We would rather treat a barrel than a backyard.
Do you treat inside the house?
When the file needs it: clustering flies on the south soffit, a wasp nest in a wall void, ants at the sink in a flood year. Interior work is placement, not fog — gel in the voids, dust in the cracks — with a 45-minute re-entry and every placement drawn on the work-order map.
What does the comeback clause cover?
Live wasps back at a treated nest, or biting counts back at route levels, inside 21 days — the follow-up is free and on the route within 48 hours. It is printed on the invoice. Floods void nothing; they just move you to the head of the queue.
Dusk routes run seven nights in season · flood priority for Basin Plan yards within 72 hours of a hatch · (555) 031-4826 · routes@fenwatchpest.example
Put your yard on the route
Street, town, and what is biting — and whether there is standing water you already know about. A tech walks the property at dusk, maps the water, and leaves the map with you whether or not you join the route. routes@fenwatchpest.example