OT/ Mycorrhizal Fungus Isolation

Not an easy question...what plant(s) are you wanting to do this for??

Sorry for being ignorant, but does that matter? I mean, aren't there generically "good" micorrhizal fungi? What is the procedure?

Eco

It matters because not all plants use mycorrhizae fungi to assimilate nutrients and water from soil. It's basically host specific and a variety of different fungal threads usually act in unison to help plants which normally have trouble with their poor root systems. Blueberries and roses are just one example of two plants, same family, which have poor root systems.

Exactly...and to carry your example forward things in the blue berry family (Ericaceae) have mycorrhizae that are notoriously specific, obligate, and difficult to culture. But if the OP is looking for a generalist, feel-good addition to the plant or soil matrix, opt for the old standard - Pisolithus tinctorius. My view of this, however, is that plants generally are already colonized by such fungi and the addition to existing plants may be unnecessary.

Sadly, fungal threads are murdered by the vast array of herbicides being used today. Oh well...one day the planet will be void again and can start over. Maybe man will never evolve again and at least this planet will be healthy. Of course this is my most irrational view :)