Mosquito Shield is the leading, professionally applied mosquito control service. It's worry-free, hassle-free and even guaranteed. The spray will kill mosquitoes on contact and create an impenetrable barrier around your property that will result in a dramatic reduction in mosquito populations. In fact, you should experience a 95-99% drop in mosquitoes. And, it's 99.97% natural so it's a safer way to help protect your family and pets from the season's #1 foe.