Mosquito Control for a Lake House: Docks, Boathouses, and the Shoreline
A lake house has the worst mosquito pressure of any property we treat, and most of the advice written for a subdivision does not apply. Here is what actually works on a shoreline lot — where the mosquitoes rest, where they breed, what treatment can and cannot do on the water.
Every mosquito on a lake lot did not come from the lake. That surprises people. Open water with wave action and fish is poor mosquito habitat; the species that bite you on the dock at dusk breed in the still, shaded water at the edge — the cove, the boat slip, the tire on the seawall, the kayak that filled with rain — and rest in the dense shade between the house and the shore. That is why treatment works on a lake lot at all, and why it works differently than it does in town.
Where they breed on a shoreline lot
Still water in shade. The inside of a covered slip where the water does not move. A dock box, a bailing bucket, a life-jacket bin with an inch of rain in the bottom. Kayaks and canoes stored right-side up. The saucers under the deck planters. The low corner of the yard where the lake backs up after a rain. And the cove itself, where a shaded, sheltered inlet holds water that barely moves. You cannot do anything about the cove. You can do something about everything else, and it is worth doing weekly from March through October.
Where they rest — and why that is the target
Adult mosquitoes do not hover over water during the day. They rest on the underside of leaves, in ivy and shrubs, under the deck, along the shaded foundation, in the boathouse rafters, under the dock. A barrier treatment goes on those surfaces, so mosquitoes that land there over the following weeks do not get up again. On a lake lot the treated zone is the band between the house and the shoreline, the boathouse, and the shaded side yards — which is where you sit, and where the bites happen.
What treatment can and cannot do on the water
A monthly barrier treatment knocks the population in the treated zone down substantially and keeps it down; that is what makes a porch usable in July. It does not get rid of every mosquito on a lake, and anyone who tells you otherwise is selling something. Mosquitoes fly in from the cove and the neighbor's untreated lot; a treated lot has far fewer, not none. Treatment near water is done with products labeled for that use, applied per label directions, and the technician stays off the water's edge itself. The setting is exactly why we schedule the eight treatments across the whole season instead of a couple of summer sprays.
Things that help that nobody does
- Store kayaks, canoes, and the dinghy upside down.
- Drill a drain hole in the bottom of the dock box and the life-jacket bin.
- Run a fan on the dock and the porch. Mosquitoes are weak fliers; a fan on medium clears a seating area.
- Cut the ivy and the low shrubs back from the path between the house and the dock.
- Dump the boat cover after every rain.
The program on Lake Martin
EnviroCare's seasonal mosquito service runs March through October, eight treatments, at $45 per treatment or $34 a month with a pest plan. For wooded lake lots, the Mosquito + Tick option at $65 per treatment covers ticks and chiggers in the same zones. Routine treatment does not require anyone home, which is how most of our Lake Martin and Dadeville weekend places are handled. The health side of the question is in mosquito-borne diseases in Alabama.
Call the office nearest you — Birmingham (205) 991-2882, Alabaster (205) 940-6360, Lake Martin / Alex City (256) 234-6162, or Huntsville (256) 937-7676 — or request a free quote and we will take it from there.
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