Hi Alexandra,
 
Maybe some fellow beekeepers ignore that Chalkbrood is what you are talking
about, a fungal disease.
 
I can't suggest what to do but from my experience I can tell you what not
to do. Some people say there is a connection between humidity and this
disease.
 
By the end of 1990, many beekeepers in Argentina started to report severe
cases of chalkbrood. During 1992 this disease affected an incredible number
of hives. There seems to be correlation between the use of plywood strips
immersed in Mavrik and Klartan (both are fluvalinate based miticides) and
the enormous expansion of chalkbrood. We believe that the abrupt release of
fluvalinate weakens the resistance of the larvae to the infection with
Ascosphaea apis (the fungus). On the other hand, beekeepers who used
Apistan slow release strips didn't experience any problem.
 
It is interesting to mention that in countries such like Israel (where the
plywood strips were born), Spain and Italy, several beekeepers have
suffered this disease in their hives and in spite of their very dry
climates.
 
Hope this helps you.
 
 
Martín Braunstein
Malka Cabaña Apícola
e-mail: [log in to unmask]
 
----------
> From: Alexandra <[log in to unmask]>
> To: [log in to unmask]
> Subject: ASCOSPHAERIOSIS
> Date: viernes 29 de agosto de 1997 7:21
> 
> What I have to do against "ascosphaeriosis"?
> 
> Andrzej, Katowice, Poland