I am involved in a project to select a honey bee stock with other
   desireable characteristics, from within a population which is resistant
   to tracheal mites.
 
   Do any of you know of evidence that may support (or not) the notion that
   the first crossing of un-related, low-aggression lines often results in
   high aggression, which then dissappears (regardless of selection) in
   subsequent generations.
 
 
   Kerry Clark, Apiculture Specialist
   B.C. Ministry of Agriculture
   1201 103 Ave
   Dawson Creek B.C.
        V1G 4J2  CANADA          Tel (604) 784-2225     fax (604) 784-2299
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