I understand (I think ).
The main concern I have is its toxicity to honey bees (and maybe a much more minor concern that this fungus finds human sinuses a great place to grow or something like that which is yet undiscovered). There seem to be mixed messages about its effect on honey bees. The manufacture states it may be toxic to honey bees. Yet in other bulletins, UMN suggested using it as an alternative method for controlling white flies instead of more bee toxic insecticides.
I suspect this means that there just isn’t enough data or studies yet on its effects on bees. I’ll do some checking on the bee forums I am on, but I may just have to wait for the tests or reports to come in.
BotaniGard seems to a potentially potent insecticide, and would appear to be just what I need for the GH, except for its potential to wipe out my bee hives.