First of all, they spray in different areas at different times. When they get to my house, it is always after dark, and usually close to my bedtime. Last night, I heard them spraying in or around Seaside/WaterColor long after the sun had set.
You do know that the spray they were using to kill the dog flies was sprayed only on occasion, and that they say that as the spray droplets fell to earth, it killed only on contact. If a drop missed a Dog Fly, it is reported that it wouldn't harm them later. So, if Naled is more toxic than DEET, and you don't want to ingest DEET, it is only logical that you wouldn't want to ingest Naled, either. The Naled reportedly killed only the small insects which were hit by the spray on the way down. So, if you wanted to avoid ingesting the Naled, you would need to stay inside until all of the Naled settled to Earth, but then there would be more Dog Flies still coming down from the source, and still biting you once the spray had dissipated.
So what is wrong with wearing Skin So Soft, if it works, as your defense strategy against the "attacking" insects? Seems much more friendly to the environment.
I really am against killing something just because it is pest. I know plenty of kids who can be pests at times, and we wouldn't dream of killing them, just because they bit us, or were screaming in our ears, or pulling our hair. Think about the universal message you are sending when you begin killing things that you don't agree with, or that are a nu science to you. Reminds me of the radical Muslims.