So I
>wonder what it is about cow urine that is effective against Bacillus
>larvae? 

Perhaps its all antibiotics feed to cows. Poor Indian farmers were known 
to give strong doses of antibiotics for every minor illness. 

About 5 years ago the US granted a patent to a Indian product which 
contains distilled portions of cow urine said to increase the activity of 
antibiotics and anti-cancer agents. 

Joe
http://pets.groups.yahoo.com/group/HistoricalHoneybeeArticles/

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