[QUOTE=I was mainly interested in the whole apiary picture [/QUOTE]
I have used oxalic acid sublimation varroa treatment for two years and have found it a very effective treatment. Did you find any Q losses with the sublimation? In my first year I lost one Q (of the 5 hives treated). She stumbled out a few minutes after application and croaked - maybe an unlucky "beginners blast" from the fumes.
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