In a message dated 13/05/2010 12:42:38 GMT Daylight Time,  
[log in to unmask] writes:

At the  same time what puzzles me is how come Australia have Nosema ceranae
with  out having varroa or Asian bees, particularly considering that  
NosemaC
migrated recently (last 20 years) to  EHB.



What leads you to believe that Nosema C migrated recently to EHB?   There 
is an island off the French coast which is in quarantine to keep varroa  out 
and this has been successful; however they do have Nosema ceranea.
 
Could it be that Nc has 'always' been around but we didn't think of looking 
 for it and people looking through microscopes saw what they expected to  
see?
 
Chris

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