Like I said, I live in the woods, the closest thing to pesticides is probably 6 miles away and since I live on an Island they would have to be swimming over here across 5 miles of open water. So really the pesticides is the least of my worries. I want to freeze them for a winter time snack! I do feed them fresh and alive right now, but I cant really go out and catch some in 5 feet of snow during the winter months, thats why I thought I could save/freeze some, just an idea really.