Option 1) SEND WIFE OVER!!
Personally, he needs to learn a lesson before he thinks he owns your road now.
I'd knock on the door and politely " Hi, I just wanted you to know that's my land you put your brush on" and continue on with "I saw you" if he denies it etc etc.
I would think he would apologize at that point with some sort of excuse.
I'd tell him he needs to remove it; and it's entirely up to you if you wanna tell him "no big deal, I burn, just ask me 1st" or if you don't want much to do with the neighbor. Friendly neighbors can really SUCK!!
And maybe he needs to be reminded, he built or bought where he choose to live and it's up TO HIM to do his homework and see what abuts his land.
Many of us abut land that is inaccessible or can't be built on because we make noise. I abut a gun club so I can make all the damn noise I want....
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country