If they are causing damage to the fields they can be charged with criminal damage to private property, and of which can be as serious as a felony charge. We had a jackass neighbor come on to our land last year and start cutting brush along our fence not to mention cuto down some trees as well and took out some steel fence posts and barbwire, then he cut a few rows of his trees to cut 16 foot shooting lanes right towards our property, and the lanes are straight in line with our machine shed, barn, house, and then cousins house, then neighbors house(s), the highway, and a tavern. I want to see if he decides to cut anythign else down on ourside this year cause if he does hell be going to jail.