At dusk near Gould's Inlet the breeze off East Beach dies down, and that is exactly when the marsh sends out its evening squadrons. Driftwood Coastal Turf & Mosquito works both sides of that hour — turf care, mowing and edging through the day, and mosquito treatment aimed at the damp, shaded pockets where they hold up. Salt spray and sand make island turf its own puzzle: tough, thirsty, always leaning with the wind. Handing a yard back to the people who own it on a summer evening is reason enough to do this. St. Simons, Sea Island and the island roads nearby are the range.