I have two hives, one started from a nuc last year that is going strong, the other hive overwinteredlast year and gave me one medium full of honey last year..
I am in central British Columbia at 3500 ft.. so I left plenty of honey for the winter, the lost hive had 5 mediums of capped honey and a good population of bees, I also treated a couple of times last summer including MAQS in the fall...
Both hives had cleansing flights over the winter whenever it was warm and we are in the middle of a warm spell right now and I had plenty of activity at both hives three days ago..
Today it was about +10 Celsius and I figured it would be safe to pop the cover and give them some fondant (I put a block in each hive about a month ago for insurance),
What was the stronger of the two hives in the fall is completely dead! The food I gave them a month ago has not been touched and the top box has dead bees buried head first in most of the cells, the next box down has about half the honey remaining, the one below it is almost full and the bottom one is empty but few cells with dead bees...
I also noted a unpleasant smell rather than the typical pleasant smell of a healthy hive..
I have 2 queens on order and this was supposed to be my source for bees/brood to expand my little apiary 🙁
Any thoughts on what might have been the cause? Should I worry about my other hive?
100 Mile House, BC