deknow quoted Morse:

> "It is known that sperm from Africanized bees was introduced into the 
> United States and was used to inseminate local queens in the 1960's 
> without apparent adverse effect, and it is likely tht queens were earlier 
> introduced from Africa to North America, again without problems".

Is the clue in the word 'apparent'?  Might it not take many generations 
before 'adverse effects' begin to show?  Some hybrids in the UK now show bad 
temper that many suspect is on a par with Africanised bees.  Although I have 
never experienced AHBs, I have handled bees in the UK that seem worse than 
the videos of AHB that I have seen, e.g. so many bees attacking my veil that 
it was difficult to see through it, coupled with following for up to 400 
yards.  From the literature, this did not seem to happen before imports 
became the norm.

Best wishes

Peter Edwards
beekeepers at stratford-upon-avon.freeserve.co.uk
www.stratford-upon-avon.freeserve.co.uk/

****************************************************
* General Information About BEE-L is available at: *
* http://www.honeybeeworld.com/bee-l/default.htm   *
****************************************************