Hello Herve and All,

Herve wrote:
> I read on the Queensland industry department web site
> (http://www.dpi.qld.gov.au/bees/4894.html) that white is the coolest color
> in summer and the warmest in winter. I understand it is the coolest but
how  can it be the warmest ?

All colors are equal on a cloudy day.  The sun shinning on the hive would create winter warmth for the  dark hive.
>
>White is not the warmest color for winter.

Black would be.

Most beekeepers which do not use white use  light colors.

I have seen dark colors used in areas  where the summer is fairly mild but the winters cold.

Sincerely,
Bob Harrison