Guilfordbeekeepers.org

I recently completed 14-day treatment with FormicPro on my three hives. Started on Aug 13, when high temps were in low 80s. Just yesterday, I finally had a chance to open the hives to check on the queens (9 days after end of treatment).

I did not see a queen, eggs, or small larvae. Granted, I did not look at every frame in every box...
I did see plenty of capped brood and uncapped prepupa.
I did not see any queen cells.
I do see plenty of pollen coming in to all hives.
Bees seem to be acting normal.

What should my next step be? Just wait it out and hope for the best? Check again in X number of days? I've never requeened before, so not sure how to make that decision.

The Formic Pro label says check for queen right hives one FULL month after treatment. I haven't researched the why of this--whether their research shows a queen may shut down or whether that is the approximate time it would take for a supercedure queen to be made and start laying.

Interesting - I see that instruction now! Somehow I had it in my head that I needed to search one WEEK after, not one MONTH after. This makes me feel better! I'm assuming this refers to waiting one month after the end date of treatment (as opposed to the start date of treatment)...

Direct response to me from the folks at Formic Pro:

"This should be from the end of treatment. Sometimes treatment can cause a brood break which can give the appearance of queen loss right after treatment. Sometimes supersedure can also be triggered in which case a new queen can take some time to get established and laying."