I was just reading Randy Olivers web site about pollen subs, and was reminded of a question that still persists for me.

PH levels in the hive, or better in different areas of the hive, ie honey, pollen, bee bread brood etc

How to measure, what ranges are good/bad and why.

How or does feeding pollen sub or syrup with diffrent ph levels change or control the ph levels in the hive?

The larger question is how important is this as a management tool for our current industry.

Has anyone tested pollen sub with low or high ph levels on large samples of hives and have any correlation or observations been made?

Thanks for the insights in advance