Orchid wrote: As it happens, I have had some personal experience with mycorhizal fungi, and while I don't know the gentleman who spoke to your group, my contact in Camarillo, CA was very honorable and knowledgeable. <snip> That would have to be Don Chapman at Bio-Organics. He's been my source, too, and I have had very positive experience with him and his products. Catharine/Atlanta, zone 7b