This web page contains a live and functional spreadsheet created with
growth of collony
varroa in colony
infection of colony
eggs & bees in collony
growth of nucleus
varroa in nucleus
If you have a healthy production colony, it has from 10 to 15 thousands of bees at the beginign of year. If you have a healthly treated colony from last year, there will be from 100 to 200 varroa destructor mites.
Number of bees at the beginning of year
Number of Varroa Destructor on 1.1.
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If you treat bees, the maximum success rate is 80%. Almost all treatments kill only the forethic varroa destructor found on adult bees. There are only few types of treatments that also kill varroa destructor inside brood cells.
Treatment day in year
success of treatment in %
Kill forretic & brood varroa
You can simulate the growth of a new colony. Just set the date when you start new nucleus amount of brood on frame with bees and if the new colony starts with queen or without queen.
Date of make divide
area of brood (dm2)
is there a queen at the begining?
number of brood cells
number of bees