I know my friend talked about something that she used.....I could ask if you want Lola...but not on her cannabis crops and she only got fair results with it anyway. The only real way I know of is fencing......the wineries in our area have at LEAST 8 feet(and usually 10) foot fencing around their grapes to keep the deer out.

Reaper, that's logical and makes perfect sense. I never would have thought of it.