We know  bees can't survive on canola honey due to being hard. Despite too 
much canola  honey stored in hives bees die from starvation.

Here in the UK the bees, Apis mellifera mellifera, must have wintered largely on crystallised ivy honey  since 
we became an island and the ice retreated about 20,000 years ago.

* * *

Not only that, but a lot of people have success feeding hard blocks of sugar candy in winter. I wonder what factors are involved in the apparent difference in these reports.

PLB

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