Experience with beneficial bacteria (ex. Mycostop)?

[elaines]

I'm getting frustrated with leaf spots & other types of fungus that I'm finding in my little menagerie. I have about 20 orchids in my apartment both just in front of a window (my low light plants) and in front of a window and under lights (high light plants). I have 2 cats and so am VERY concerned about using chemicals inside my apartment. Especially since one of my cats rambles among my orchids nightly.

Just read a very brief bit about the beneficial bacteria Streptomyces griseoviridis (sold as Mycostop with similar strains sold under different names). I'm having trouble finding info online. I already use Gnatrol occasionally and have had fabulous results with it.

Does anyone have experience with using beneficial bacteria to prevent fungal infections? Which brand did you use and was it effective? Do you think they're safe to use in a residence? Any suggestions or things I should consider?

Thanks!!!

-Elaine