Hello All,
 
I think it was Juanse Barros who alerted the list to the paper: "How
natural infection by Nosema ceranae causes honeybee colony collapse
disorder". Mariano Higes et al., Environmental Microbiology 2008: 11
pp.
 
In short, in Spain, after a long period without obvious symptoms, N.
ceranae caused the sudden collapse of colonies, . Exhaustive testing of
colonies for viruses showed they were few, and IAPV was not associated
with the observed colony collapse. No adult or brood diseases were
diagnosed, and no other parasites were detected. No colonies were
exposed to pesticides.  
 
Further, N. ceranae spread to nearby colonies. There is no mention as
to whether collapsed colonies were ignored by robber bees and other
insects. Apart from this, do not the symptoms of colony collapse match
those seen in the U.S? 
 
The good news is that N. ceranae in nucleus hives can be 100%
controlled by fumagillin. However, the nuclei became infected again
after 6 months.
 
Does not this paper identify N. ceranae as the cause of CCD, and
provide the control?
 
Regards,
Barry Donovan,
New Zealand.
 
 
 
 
 
 
    


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