RobA
Platinum Member
I posted a similar question here about a week ago. Mice were constantly making nests under the hood of my Kubota. The advice I got was to use mothballs and to leave the hood up. The day before I posted the question I had left the door to the fuel tank open. That little bit of openess (or lack of a closed space) discouraged nest buidling. So now I leave the hood up and mothballs near by. My tractor is in a barn though - not under a tarp. An open hood with a tarp over it may still give the pests a sense of security.