The entomopathogenic fungi (Metarhizum, Beauveria and others) kill
insects by actual infection through the cuticle producing some pretty
dramatic pictures. I never understood how it was Metharhizum was
expected to kill varroa mites without affecting bees. The old dose vs.
mass ratio?
The more general mycelial extracts with potential antiviral properties
have active ingredients, probably not anything live or infective and in
alcohol may act as tonics.
The continuing question regarding varroa and viruses is whether it is
more effective to target the vector/activator of the virus or try to
stop the ubiquitous viruses from propagating to critical levels.
Thinking that not all mushrooms are good for humans and possibly bees.
Cottonwood Creek Apiaries
P. O. Box 1032
Crestone, CO 81131
719 256 4010
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