Bob writes:
From my observation the above is not true but might be with the beekeepers
Ernesto has observed. Again researchers teach requeening or attempting to
with European queens ( leaving the AHB mature drones in place). I teach kill
the aggressive bees with drones!


Actually, Dr. Ernesto Guzman-Novoa already suggested this same thing, 10 years ago. 

The traditional way to deal with defensive Africanized stocks is simply to introduce European queens, if available, into all the colonies. However, a European queen will most likely be superseded by a daughter after about 7 months, and the daughter queen will fly out and mate with primarily Africanized drones (Guzman-Novoa et al. 1998). Since high defensive behavior apparently shows paternal effects, this would not be the best strategy. It would be better to saturate the mating congregation areas with drones of European origin.

SEE
Guzman-Novoa E and Page RE, 1999. Selective breeding of honey bees (Hymenoptera: Apidae) in Africanized areas. J Econ Entomol 92:521–525.

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