There is nothing that will warn you of what is to come until it's already there. Sometimes mother nature works for you and sometimes against you. You either use preventative measures or hope you catch it at the first sign. Various diseases aren't selective and some are. Those that aren't may or may not be there and those that are can eventually find there way to it and then build over time. If you were to experience an outbreak the best thing to do is clean the area of old tops and plant material before the tree leaves fall and use a fungicide to that area to reduce any chances of reoccurrence the next season. If you don't and the conditions for disease are there again, so will it. The diseases specific to Ginseng are more disastrous later on but the first year, if you see anything, it will most likely be something like pythium or rhizoctonia. After the plants are older they can withstand those fairly well. A planting will experience it all eventually, you can either try and control it or roll the dice. You can spread them far from each other and reduce your chances of disease spread but then, it's hard to truly manage an area that is planted all over the place. Dependent on how you want to grow,It's a double edge sword.
I've never been very lucky so I don't want any dice rolling! I want lush,woodland ginseng fields, I want to set down in one spot and dig roots and then scoot up and dig roots and scoot over(you get the idea). I want to be profitable but it's not all about the money. I set the wheel in motion several years ago and I want it to be it's best. Nothing better than looking across something you accomplished with a sense of pride and satisfaction. So, I plant moderately thick,I know certain diseases happen in certain times and I try to prepare. If I were to experience a bad outbreak then I feel I wasn't on top of my game. It's not that Ginseng is disease prone but it does happen and if they are close, it will happen in multiples.
If a person wants a good hobby with a little exercise involved and an excuse to head to the woods sometimes, I would plant thin. Not that my way is the best, we all have different goals, but mine has turned into a part time job that I pump a lot of hours and money into every year and truly, it's all in faith of what's to come. Success or failure, It will have been a unique and enjoyable venture. I mean really, how many can actually say they grew Ginseng by the woodland acre?
You can bet the farm that nature is going to thin them dudes down to where she wants them if your not there(and some even if you are). If you won't be there, don't waste your money by planting thick.
The man that said \"An ounce of prevention is worth a pound of cure\" had to have grown Ginseng.
Hillhopper