important word underlined. I wish I could find it, but someone posted a test that is rather telling. It was of a lawn that had been, and still was, on a regular synthetic program for years. SFI themselves did the test. They said that the fungal count was high, and the bacterial count was adequate. Note usually. In fact, most of the ions that are in fertilizers are produced by microbes themselves. YES! Bridge is ah-maze-ing!