_The Speedy Bee_ has carried an advertisement in the U.S. for such a device.
220 vac powered units are listed at US$395 from Honey Processors, Ltd., 116
11th Street SE, Altoona, IA 50009. Phone 515.967.4952.
Bill
Karen DeHond wrote:
> A non-beekeeping friend ... said that in Europe there is a
> gadget that aerosolizes the vinegar to spray into the hive. Has anyone
> heard of
> this?