On Sat, Jun 29, 2013 at 9:04 AM, Peter Loring Borst <[log in to unmask]
> wrote:

> The following study raises the issue of concentration of nectar in comb,
> which could lead to concentration of IMID. Having kept bees in citrus
> locations, I know quite well that they do not forage it exclusively when
> there are other nectar sources. Citrus is much less sweet than for example
> eucalyptus which often blooms at the same time.
>
> Abstract.....
>

 This was a Bayer study I see from the authors.  Did they address the issue
of residual in the soil?  They say in the abstract that the soil treatment
was up to 232 days before nectar production.  I assume then that the trees
were treated for the first time.  How many years is the treatment good
for?  Do they retreat the next year?  If so, I wonder how that affects the
nectar imid concentration.  Such data must have been presented for
registration one would think,  but I haven't seen it.  Pest Management
Science is not open access.

Stan

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