My 18 month old Deere cab tractor was totally disabled about a month ago by either rats or mice. The total damage ended up costing about $11k as the little critters chewed on a variety of wiring harnesses, fuel lines, coolant lines and even the DEF lines. Seems like the Deere dealership had to disassemble half the tractor to get to and fix the damage. It had been parked on a gravel pad under a car port but looks like I need to move it to the concrete pad barn to at least get a little more protection. Been looking through a lot of posts and may look into Tom Cat, cayenne pepper, and some of the other suggestions. I have dogs so want to be careful with poisons. My truck has also been parked under the carport and have noticed evidence of mice on several occasions as they would eat my starlight peppermints and leave their wrappers all over the floorboard. I then put a live trap on my floorboard with the peppermint as the bait and have caught 5 mice in the last six months. I had previously used dryer sheets and heavily scented trash bags in my glove box where they had chewed on kleenex before but not sure they had any effect. All the damage to the tractor was underneath the cab which Deere had to totally remove so I need something I can use under the cab.
My tractor is finally being brought back this Friday. If anyone has any new updated ideas, I am all ears.