Used Apiguard for the first time this week and the hives are tearing out their brood. I suspect its probably not killing the brood but has whipped them into a cleaning frenzy and they are throwing it all out. They are not however throwing out pollen; but rather still bringing it in. Product was applied to 1.5 to 2.5 story hives at 5 pm, bottom entrance fully open, temps around 91 degrees. I am concerned they are tearing out the winter brood. Mite levels appear to be relatively low just saw them for the first time last week in drone brood.
I have in mind to feed them one week into the treatment to encourage the queens to lay; then my concern is that when I apply the second treatment they'll start all over again.
What has your experience been with this product?