Fluvalinate in hive products ...
 
Hello all,
 
======> Fluvalinate in honey ?
 
Recent spanish searchers results gave us some indications about :
 
J.Atienza, J.J.Jimenez, J.L. Bernal and M.T.Martin. Supercritical
fluid extraction of fluvalinate residues in honey. J.Chromatogr. 655
(1993) 95-99.
 
Briefly : few or no fluvalinate in honey from treated hives (3 and 6
mounts ago).  One degradation compound (3-phenoxybenzaldehyde) was
find : high amount !
 
 
======> Fluvalinate in beeswax !
 
In Europe, the foundations from the suppliers become more and more
contaminated by Fluvalinate : it's becoming "the" fluvalinate problem.
 
Paul Jungels and Jos Guth, the Luxemburg Buckfast bee breeders gave
some articles to pay attention to (articles in luxemburg and french,
maybe german).
 
Briefly : they suggested to drastically split the brood frames (and
wax) from the honey super one (use of plastic frames or foundation
made of uncapping wax for honey).  They said to increase the turn over
of the frames to diminish the fluvalinate level in the brood combs :
not only for the risk of inducing varroa resistance but to diminish
the letal risk for the queens exposed during a longer time than the
workers to high levels of this drug.  They suggested to mark and
rapidly remove the 4 frames in direct contact with the Apistan strips.
 
Cheers
 
Jean-Marie
 
 
Long. : 4deg 56' E - Lat. : 50deg 30' N  -  Alt. : 200 m  -  North sea : 200 km
 
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Jean-Marie Van Dyck                    Fax +32 81 72 42 72
B.P. 102                               email : [log in to unmask]
B-5000     NAMUR(Belgium)              Medical school - Biochemistry dept
 
This => C'est ma facon de parler !
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