My barn is only ~30x30, so I threw a box of moth balls in there during the summer. I have another box ready for when I put the tractor in there.
My situation is that I am getting a side-by-side and will keep that by the house in the summer, kubota in the barn. Then winter time, switch them.
Either way, whatever in the barn, will be used randomly during the winter/summer. Just not daily.
I put probably 1/3 of the 4lb tub of Tomcat bait around the barn yesterday. I figured once I put one of the machines in the barn, I'll cover the floor underneath it with moth balls. But since I'll still be using the equipment randomly, I really don't want to put moth balls IN the machine. (I used to do this when I would store cars in the winter at the old place, worked great).
I was going to look into those electronic sound emitters, but I didn't know what brand to get, or if they even work. The barn will have my dump truck, Grasshopper and either the side-by-side or Kubota in there, so I'd like to get something that works. No cats for me, and unfortunately, no dogs at the moment so that isn't a concern.
P.S. i also always keep a battery tender on whatever is going to be sitting for more than a week. I have a nice quick connect model that I use.