Charles wrote..."Those of us with MANY hives find it impractical to try to
watch mite growth in individual,
and need a threashold,  however arbitray it may be."

As I have patrolled around the edges of the various discussions, I often
wonder how the very large commercial operations go about managing tens of
thousands of . colonies. How do the the Adee's, Miller's, Hackenberg's and
others treat for Varroa and how do they manage over the year. Anyone know?
 

 




 

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