How to Reduce Mosquitoes in Your Mount Pleasant Backyard

Mosquito control in Mount Pleasant is complicated by the fact that two very different species are responsible for most of the biting pressure in residential areas, and they require different approaches. Treating for one without understanding the other is why many mosquito control programs produce incomplete results.

Asian tiger mosquito: the yard breeder

The Asian tiger mosquito (Aedes albopictus) is a container breeder. It needs only a small amount of standing water — a bottle cap, a flower pot tray, a clogged gutter section, the cupped leaf of a bromeliad — to complete its life cycle. The female does not fly more than about 300 feet from her breeding site, which means the Asian tiger mosquitoes biting you on your patio almost certainly bred on or immediately adjacent to your property.

The most effective control for Asian tiger mosquitoes is source reduction: eliminating every standing water source within the foraging range. A thorough property walkthrough targeting containers, gutters, and low spots in landscaping achieves more than any spray program that leaves breeding sites intact.

Salt marsh mosquito: the migrant biter

The salt marsh mosquito (Aedes sollicitans) is not a yard breeder. It breeds in salt marsh cordgrass (Spartina) at high tide, and adult females can fly ten or more miles from the marsh in large post-rain emergence events. In communities near the marsh — much of the Mount Pleasant peninsula, Sullivan's Island, Isle of Palms — salt marsh mosquito events arrive en masse and are largely outside the control of individual property owners. DHEC's Mosquito Control Division manages regional salt marsh mosquito populations through aerial larviciding programs.

What a professional mosquito program covers

A professional residential mosquito program addresses Asian tiger mosquitoes through source reduction inspection plus adulticide barrier spray to resting vegetation (shaded shrubs, groundcover, and the understory where adults shelter during the day). Some programs include larvicide application to water features and drainage areas that cannot be eliminated. The program does not control salt marsh migration events; setting that expectation with any operator before signing a program agreement is important.