The problem may be that during rough handling the queen is injured or
killed and the pheromones from the replacement queen are the cause of
the ill temper.Its easy to roll the queen between frames if care is not
taken during inspections.The supercedure queens from  hybred mothers are
often more agressive than the original.
 On a side note the method for making wax moth traps in the bee-l
archives really works although it takes about a week for the banana to
pickle and begin attracting moths.Mine have been up for a month now and
have a 3/4 inch layer of dead moths floating in each one.
 
 
 
 
                                                Curtis Spacek
                                                Harris County Beekeepers Association
                                                http://www.harrisbee.org