According to this study a pH<5 will inhibit Chalkbrood from germinating.
According to this the average pH of honey is 3.9. Sometimes it's as low as 3.4.
According to this the pH of table sugar is neutral (ph = 7.0).
So is there a difference between sugar syrup and honey?
I'm very curious how pH affects Nosema and AFB and EHB and other problems including mites.