I find it on our lease quite often. You have two options.. What I prefer to do is this.... I know a local who in reality could be the very person doing it, although i could never prove that.. I simply tell him I don't care, I'm not calling anyone.. Just if it's his, I want it moved off our lease. I then tell hm in conversation where I found it... When I leave i know i don't have to worry about it anymore and it will be gone... 1. If it's his he'll move it because he knows I know where it is... 2. If it isn't his he'll steal it... Either way it's gone...
Since this is public I suggest this... I'm sure you know a shifty local.. Pay him a visit and tell him where it is... A Pot growers worst enemy isn't the cops.. It's other growers or people stealing it.. Once his farm gets stolen he will never plant there again. Problem solved..
Also Red you shouldn't have anything to worry about hunting there.. By opening day of deer it will be gone and the grower nowhere to be seen.. However the problem will be this, if nothing happens and he is successful, he will plant it again next year in the same spot.
The second option is to just call the law.. The reason we prefer not to do this down in vinton county is this.. Despite being a shifty local, that guy is good for deer sightings.. Plus he's a better friend than a cabin burning, truck tire slashing enemy..