Here is a small technique that is even better than salt. To verify if your have local bucks in your area, make a false scrape late in the spring at trails intersection or in an area occupied by deers. If there’s a buck that sees this naked area, he won’t resist at leaving his scent and his tracks in the scrape. A game camera will do the rest. No lure or apple, only a small naked area under a branch. You may repeat this strategy in all your sectors by leaving your game cameras in place for 2 weeks.
Have a good day. Louis