Don't let mosquitos keep you apart. Get back outside with OFF!. OFF! Bug Control Backyard Pre-Treat is a concentrate that, when attached to a hose and sprayed around a backyard perimeter, will protect an area up to 16,000 sq. ft. from 110+ insects for up to eight weeks on hard, non-porous surfaces. It works to protect trees, shrubs, ornamentals, structures and a number of vegetables from insect damage. GET BACK OUT THERE.