Removed Varroa boards today. No sign of Varroa however one of our hives has removed a substantial amount of pollen. Hundreds of small yellow compressed pieces of pollen thrown out of the hive. Why is it so?
Also can pre mixed sugar syrup spoil ?
Does it have a best before date ? Considering using syrup from last year that is stored in original container. Syrup has not discoloured in any way ?