Paul I do not know if it is breaking news, but I tend to agree with the
report.

I think N. ceranae can a be a "second deadly stressor". Contamination in wax
could be another one. Varroa is for sure THE first one. Bad autum nutrition
also. Add them together.

In my own experiment here at southern Chile i treated "bad and late" with
formic acid some 1000 hives. Of this I left 80 without fumagilin. All were
properly feed.

The 920 "with fumagilin in autum", were full of varroa (>10%) by end of June
(winter here) but none have died and they were with enough population.There
were almost no brood by end june. We treated them with amitraz and will
check soon. We are feeding (pattie+sugar) in the mean time.

Of the other 80, "70 had dissapear" (very much like CCD, no bees, lots of
reserves). of The 10 remaining I think only 4 will make it for the rest of
winter.

What surprised me was the high load of Braula coeca (piojo) in the 10
surviving.

Does formic works for Braula? What is Braula telling us? We tough Braula was
extinguished cause the hard chemicals.


-- 
Juanse Barros J.
APIZUR S.A.
Carrera 695
Gorbea - CHILE
+56-45-271693
08-3613310
http://apiaraucania.blogspot.com/
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