In the past I've used the Mountain Camp method of placing dry sugar on the top bars as insurance during the winter. Every year during the last five years it has worked very well and I lost few hives over the winter. If the bees ran short they'd hit the sugar and if they didn't run short they left the sugar alone and I'd collect it for later use. This year in the TX Panhandle we have had longer colder spells than typical and I've lost five hives. They didn't ever seem to get to the sugar and I wondered why the difference? The drought has been difficult on the hive during the last three years so they went into the winter a little short on stores but I had hoped the dry sugar would provide the extra needed. Bees are now bringing in pollen and some nectar so I'm hoping that the remaining hives will survive but I still wonder why the sugar didn't seem to work as well this year as in years past. One thing different was that I used some leftover sugar from last year instead of starting with all new sugar, but I don't see how that would have made any difference. Any thoughts?