I'm not so sure that eviction is the right way to go - wether, or not, they are actually residing there.
I don't know about the OP's state, but in California (at least) a Renter must have the expressed permission of the Landlord in order to "legally" grow. Now with that being said, I'm not really sure what the OP really wants to do - do you want to chop the grow down, or do you just want to chop yourself some, or do you just want to make the guy pay-up? At any rate, just tell the "Rentee" that he has not compensated you (as per yout agreement), so you are therefore rescinding your permission for him to grow on your property. See what he has to say then!
Does the OP posess the proper paperwork to maintain a "legal grow"?