Nick Wallingford wrote:

> Some years ago one of our NZ bee scientists was working to find a good
> 'knock down' type chemical

> Only chemical I remember specifically him talking about at the time was
> resmetherin,

We tested it a little here in Tucson - I remember it was applied under a lid for
a few seconds (from aerosol can), and the bees absolutely shot out of the
entrance and were dead in a few seconds.  Pretty impressive.  I know nothing
about the residues - since we were in test mode, the colony was bagged and
disposed of as hazardous waste.
    - John
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John F. Edwards
Carl Hayden Bee Research Center
Tucson, Arizona 85719
http://gears.tucson.ars.ag.gov/home/edwards/edwards.html