On Thu, Jan 19, 2012 at 11:35 AM, allen <[log in to unmask]> wrote:

> > For 10 weeks, we continually exposed full sized colonies of
> > bees (30–40,000 adults) to 5 and 20 ppb imidacloprid by
> > provisioning colonies with protein supplement patties
> > spiked with the pesticide.
>
> Does anyone know what that means?  It means nothing to me.


I think it would usually mean that the patties were spiked to that
concentration, and the bees were "exposed" (fed) that.  I agree it is
ambiguous, but that would be somewhat the same as bees being "exposed" to
pollen with that concentration,  which would not be unusual and any other
measure would be difficult to do.

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