Welcome to the forum arbasham. Well, I don't consider myself an expert, but in a nutshell yes it is to late this year to make it worth your while i'm afraid. Usually, in most suitable areas of ginseng habitat you can effectively hunt it from Sept 1st through about mid to late October given you haven't had cold snaps, rain, wind, etc. Unfortunately, the ginseng season is so short you have to hit it really good through Sept and first few weeks of October. Although, you can find a few stragglers this time of year I don't think you will find a whole lot left, but it's a good reason to get out in the woods. It's the most beautiful time of the year! Good luck on your future hunts.