We go to CN every February, in fact in 35 days, and have never been bothered by sand fleas, mosquitoes or any other type of insect. We don't use bug spray but we do use Skin so Soft which some say is a bug repellant as well. It is also good for cleaning bugs off the bumpers of your car. That may be the secret for us. I am allergic to any insect that bites and get a welt easily from them. Too many bites and I get sick, but I have never had an issue in CN. Don't have an issue here in Ohio either, but again, I use Skin so Soft most the time.