> A very interesting article is in the May issue of BEE Culture by Dr. 
> Sanford.

You can read it here. http://tinyurl.com/yqkmtq

> Dr. Sanford from the article says: " New documents at the Mid Atlantic 
> Apiculture Research and Extension Consortium include the following 
> advice:" ( and source for the below information).

Bee Culture's whole series on CCD is here:

http://beeculture.com/content/ColonyCollapseDisorder.cfm

> "Colonies experiencing CCD have been shown to have kidney (Malpighian 
> tubule) problems similar to those seen in colonies treated with hard 
> chemicals. There are some reports that oxalic acid may damage bee 
> Malpighian tubules"

Dr. Sanford merely repeats the advisory, and does not comment.

This is interesting. There is no indication from where these reports have 
come, or their credibility.  Does anyone have any real information?  Or is 
this just one of those speculative rumours that goes around and gains a 
following without any evidence?

I found this: 
http://www.ento.psu.edu/MAAREC/pressReleases/FallDwindleUpdate0107.pdf,
but it does not link the abnormality to any cause.  There is mention of 
amoeba and nosema, but none of chemicals or treatments. 

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