On 18/08/2011 8:00 AM, Peter L Borst wrote:

 >That's silly. Of course it's dark in the brood area, the light doesn't 
come up through the cluster.

You wouldn't say that if you had ever tryed to get a room darkproof.

 >There is no way they know if the days are starting to get longer by a 
couple of minutes in December. Even people aren't that perceptive.

Bees and people may or may not.  However countless animals are.  Bees 
certainly seem to respond to day length.  Here good pollen and nectar 
flows can moderate the autumn/spring response, but not eliminate it.

Geoff Manning
NE NSW
Aust

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