I've never won any war with coons, their numbers and determination has always gets them the win. Since nobody around here traps them for fur anymore, there must be thousands hiding in the woods.
Electric fence - I set up a game camera and you could see them taking the electrical shock, but they kept going in.
AM radio on high volume - The next morning I saw 6 corncobs laying next to the radio - guess they like to listen to talk radio while they're eating.
The "red eye" predator lights - Coons aren't scared of them.
Adopted a dog and set him up next to the garden - Guess he was a lazy dog, coons still bypassed him and came through the electric fence.
Set up welded wire fence with electric fence midway up - they would find a place to dig under and I'm not about to dig a trench around the garden to bury it.
I just buy fresh corn now that I've admitted defeat.