> Has anyone here any data on the effects on wintering or spring performance
of colonies repeatedly dosed with OA vapour?

Two rules here, Allen:
- only one application of oxalic acid in a bee's lifetime
- no application when brood in the hive

In Italy, where OA-application against varroa started, beekeepers used OA
repeatedly and at a higher concentration as 3,5%, but they came back from
it!

Ghislain De Roeck,
Belgium/Europe.


 

             ***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software.  For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html

Guidelines for posting to BEE-L can be found at:
http://honeybeeworld.com/bee-l/guidelines.htm