observation hives

[moon]

I have an observation hive in my classroom in NY, not much food left, wondering if I can feed bee tea (1:1 sugar/water) now.

[Colobee]

Yes. If the weather is cold, they may be fooled into thinking there is a flow going on & rush out & freeze. If you can restrict the feeder or plug the exit you (they) should be fine.

[Michael Bush]

Feed them 5:3 or 2:1.  No reason to mess around with 1:1 which will spoil quickly and cause moisture problems.