The Bug Patch is a fantastic invention. Works very well. Haven't tried it in deep woods, but is great during Softball games in the outfield!! Make sure you follow directions and put the patch on at least 2 hours before needed. We usually try to put them on our shoulder blades, works well and stays put. The only thing I don't like is the insane shipping charges for something that doesn't weigh very much. But that is a Target issue.