Apart from the convenience to the bee keeper, and assuming everything else is equal, is there an optimum time of day to carry out OAV treatments? Morning, Noon, Afternoon, 2:30 AM?
I had heard that foragers typically do not have mites, so if they are out doing their thing, the middle of the day might be better.
Or is it better to do it while all of the foragers are in the hive to coat more clean bees that will continue to carry the residue to potentially rub against mites.
Does the capping of brood cells slow at night?
Do bees typically emerge at a particular time?
Do the mites pick any particular time to migrate into the cells?
The answer very well might be "it doesn't manner so long as you're treating consistently" But if there is say a 10% increase in exposes mites at 10 pm vs 8 am, it might be worth considering.