My personal opinion is that the problem is primarily Varroa and
> all else flows from that.

Bill, we had collapses before varroa, so IMO, varroa would be classed as a 
secondary contributor.  But a damn strong contributor nonetheless.

I've been checking a lot of bees for nosema of late.  Hard to find in most 
of my yards.  But the one place that I can always find it is in the "sick 
yard" that I brought all my most varroa infested colonies home to for 
experimentation.  Could be coincidence, but I'd sure like to see a study as 
to whether nosema thrives in varroa-infested colonies.  Pete, have you seen 
such a study?
Randy 

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