The aim of the research was to gauge the efficiency of Apifos (strips conta
ining 60 mg of bromfenvinphose) in fighting varrosa. The highest efficiency
, almost 94%, was noted in families of group I, where two strips of Apifos
were situated near the feeder, less in group II - strips were placed in the
bottom chamber, between cs situated furthest from each other (84.33%). The
lowest efficiency was noted in families of group III, where Apifos strips
were located nest to one another in the top and bottom chamber (73.87%) and
zero efficiency was observed in bee families where strips were placed in t
he top chamber between the last and next last frame on the side opposite to
the feeder, The efficiency of Apivarol AS against varrosis was high and am
ounted almost 90%.
The above obtained research results indicate that the level of efficiency a
gainst varroatosis is dependent not only on the type of substance used in s
trips and its quality, but also strip location.