So its that time of year. I made a few fatbeeman feeders to keep nucs going in a dearth that really didn't happen till quite late in the season.

However, I have a few late nucs, relatively strong in bees, but light in stores that I thought I would get some weight on them before serious feeding begins.

So far they are working great. Once the nuc gains momentum and figures out the feeder, they are consuming a about a quart a day. Probably could take more if I had bigger containers. That left over sugar from last year is disappearing fast.

However I was thinking that once it got cold, they might stop using them. Its starting to get cooler overnight here and l checked for activity early morning. Strong feeding at 8 C (46 F). Anybody know at what temperature bees will stop using this style feeder?