Re: vinegar sugar recipe
Nothing needs to be added to sugar syrup to prepare it for feeding bees.
The bees adjust the ph when they process the syrup, and they adjust it to what they think it needs to be. The amount of vitamin C a honey bee need has not been determined, at least to my knowledge, so how are beekeepers to know if their bees are deficient in that vitamin?
Adding vinegar to prevent spoilage may work, but that is unnecessary if 5:3 or thicker syrup is used. It won't ferment in the time the bees take to process and store it.
42 + years - 24 colonies - IPM disciple - Naturally Skeptic