how can a bee become a queen bee
Queen bee The term "queen bee" is typically used to refer to an adult, mated female that lives in a honey bee colony or hive; she is usually the mother of most, if not all, of the bees in the beehive.[1] The queens are developed from larvae selected by worker bees and specially fed in order to become sexually mature. There is normally only one adult, mated queen in a hive, in which case the bees will usually follow and fiercely protect her.
Varroa destructor The adults suck the "blood" (hemolymph) of adult honey bees for sustenance, leaving open wounds and transmitting diseases and viruses. The compromised adult bees are more prone to infections. With the exception of some resistance in the Russian strains and bees that have Varroa sensitive hygiene (about 10% of colonies naturally have it), the European Apis mellifera bees are almost completely defenseless against these parasites. (Russian honey bees are one-third to one-half less susceptible to mite reproduction).[2]