Hans Werner Wunderlich wrote:
>
> Hi Richard,
>
> treating the bees in the early winter with "oxalic-acid" (don't now the correct
> translation) is a new methode tested from University of Bologna (Italy) and also
> tested at University of Hohenheim (Landesanstalt fuer Bienenkunde, Germany).
> By dropping twice times an acid-sugared-waterliquid in proportions like
> 1kg suger:1l water:140gr (oxalacidihydrat?)to the closed bees, 50 ml per hive,
> they measured a varroakilling efficiency of 96%. There are no beelosses because
> of the acid observed.
> The user should use protective glasses and gloves against the acidsmoke and
> little sprinkels.
> It's important by all acidmethodes.
>
> Next wintertime i'll test it likewise.
>
> Hans
> (Germany)
 
This method is described in the Scottish Beekeeper this month and would
seem to be the *Magic Bullet* as far as Varroa is concerned.  This is a
systemic treatment and looks very promising.  The report can also be
read in Deutsch Bienen Journal for February 97.
 
Harry
Scotland