On Wed, 9 Sep 2009 09:36:02 -0500, Bob Harrison <[log in to unmask]> 
wrote:

>I said then and say now that one needs to spend as much time looking at the
>healthy bees as those with CCD to solve the riddle.


If you would take the trouble to read the study, you would see that this IS what they did. 

In January and February 2007, we selected colonies resident in
Florida and California distributed across 13 apiaries owned by 11
different beekeepers. Apiaries were classified as (1) having no
colonies with CCD symptoms (‘control’) or (2) having colonies with
CCD symptoms (‘CCD’). 

CCD-affected apiaries contained 3.5 times the number of dead
colonies compared to control apiaries.

There were no differences in the mean number of pesticides
detected in the wax of colonies from CCD apiaries
compared to colonies from control apiaries.
Similarly, there were no differences in the
number of detections in beebread.

Chronic or sub-lethal exposure to agricultural- or beekeeperapplied
pesticides can weaken the honey bee immune system,
hampering the ability of bees to fight off infection. This study
found no evidence that the presence or amount of any individual
pesticide occurred more frequently or abundantly in CCDaffected
apiaries or colonies.

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