Hello all !
 
 
>Bill Truesdell wrote
>Thanks. Any thoughts, guesses why resistance is in Italy and Florida first and
>seems to not have taken hold in northern climes in Europe... or has it?
 
Salut Bill !
 
For your guidance, we are here in Belgium with a lot of Varroa which are
resistant to Fluvalinate and our climate if quite not the one of Florida :-)
I'm thinking that, this year we had not yet 10 days with more than 20 deg C.
Perhaps in Denmark or Sweden (more than 1000 miles more in the North.
 
This winter and spring many colonies collapsed in Switserland and in Alsace
for the reason of too much Varroa in spite of the normal correct Apistan
treatment.
 
>Allen Dick wrote:
>> I've heard it said that it was known from the start by researchers that
>> fluvalinate would have a probable maximum useful life as a varroa control
>> of around ten years before resistance could be expected to appear if it
>> were employed widely.
 
OK Allen ! For the first and our misfortune there are about 10 years we are
using APISTAN strips.
 
And the second, we are observing a migratory flow across Belgium
the South is more contaminated than the North, in spite of a harder climate
in the South.
 
Hope this helps, but doesn't give any consolation !
IMHO : the worst will come yet :-((
 
Jean-Marie