Can I use Physan 20 and Mycorrhizal Fungi together?

[Royal]

I'm with Nat. I use Physan in a spray bottle to help "pressure wash" all of the media from the roots of deflasked plants. I mix it weak, about 1/2 tsp per gallon - no problems.

The whole orchid/fungus symbiosis thing is still not fully understood. While it may be a huge part of the propagation of wild populations, in cultivation the nutrient media in a flask gives the plants everything (and more) than the fungus would supply in nature. Studies have also shown that looking at the same species, in the same area, that the type of fungi varied from population to population.