I do it but I don't have any data points on baseline of trees with and without in a soil less medium (in this current thread of container pot culture) In the world of annuals like yearly vegetable gardening, Myco does help to create a larger root mass for seedlings. When I transplant them up from the liner - the ones that have been inoculated does have a larger root mass IME. Was just curious if anyone here may do it after a root prune but see my original remark on this thread....the whole point of root prune is to either get rid of roots since it's pot bound, so I also presume said grower may not want that much *roots* to be be expedited in the same pot that was just root pruned.
After reading about mycorrhizal fungi in pots, my thought is that it's great if you have money to burn. Like adding 'good wishes'. It's been many years since I attended a presentation by Dr. Shannon Berch about mycorrhizal fungus but I remember her saying that adding it to container plants was counter-productive. Not everyone agrees so it seems but I trust her authority more than most.
