Peter quoted CAPA's report:


> Instead, it is conceivable that Canadian producers may simply see these 
effects as higher numbers of dead colonies following winter or those 
described as dwindling during early spring.

> Most scientists in the U.S. and Canada would agree that what is being 
described as CCD in the U.S. and the high winter losses seen in Canada are 
likely being caused by several common interacting stress factors acting on 
honey bee colonies.

A word of caution:

- Check the meaning of word conceivable. 
- Check the statement : "Most scientists in the U.S. and Canada would 
agree that what is being described as CCD in the U.S. and the high winter 
losses seen in Canada are likely being caused by several common 
interacting stress factors acting on honey bee colonies."

This statement has become a "common" statement included in most of 
recently published research on honey bees mortality. So, Study bee stress. 
We need a tool to measure bee stress or a bee Psychologist to evaluate 
bees' stress.


I will say  when Canadian Apiculturists worked with the industry  on 
controlling Varroa and Nosema, we are seeing positive results. The 
following statement is in the report:

Compared with the previous three years, mortality across regions has been 
less variable and generally lower. Extension professionals in Canada 
attribute the improvement in colony losses, in part, to the availability 
of a new Varroa mite control product, Apivar®, which contains the active 
ingredient Amitraz. This product was made available to beekeepers under 
emergency use registration (EUR) for the fall of 2010. Effective use of 
existing mite control products, such as those containing formic or oxalic 
acid, also contributed to improved mite control in 2009-10. 
Additional factors that contributed to increases in colony survival in 
2010 were enhanced sampling and control for the honey bee internal 
parasite Nosema ceranae as well as greater intensity of monitoring for 
other pests and diseases in major beekeeping areas. 

Key words:
Monitoring, Apivar (Effective varroa treatment) and control of nosema 

Medhat


Medhat Nasr, Ph. D.
Provincial Apiculturist
Crop Diversification Centre North

17507 Fort Road
Edmonton, AB, Canada T5Y 6H3
Tel: (780) 415-2314    Fax: (780) 422-6096
Mailto:[log in to unmask]

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