We have a bat habitate in the barn, and they used to also sleep inbetween the boards on the lower level. I would much rather use natural preditors then sprays. Yes we do have a lot of wet weather here this year, but have in years past as well. Never thought I would miss bats, but I do. I also welcome the black snakes that help the cats get the mice, but my neighbor insists on shooting them. If you are afraid of bats, I'm sorry, I'm afraid of some things too, but Nature is better some times then chemicals. Every morning now when I go into the indoor to feed there must be a hundred skeeters, I'd rather have bats then then those blood suckers biting my horses and fly spray only lasts a little while. Going to town tommorrow and going to the county extension office.