Re: MAQS Bee Murder
It's very hard to get formic acid dosing right MAQS is a form of formic acid. Temperature and humidity are important factors, as is the strength of the hive and amount of ventilation.
When I dose with formic I use a high dose 24 hour treatment and accept that I'll lose some bees, I'll normally lose a cupful or two per hive, and over the next few days they will also likely pull out some dead brood, along with maybe some dead wax moth larvae. The plus side is that it seems to have a stimulative effect on the hive, a couple of weeks later the hive looks nice & clean, happy bees working hard & good brood patterns.
It sounds like you only left the MAQS in for an hour? If so, this will not do the job. What I do is when I treat, if it seems overpowering for the bees I'll increase ventilation but leave the treatment in. You can lose some bees but the sacrifice is worth it for the many.
44 years, been commercial, outfits up to 4000 hives, now 120 hives and 200 nucs as a hobby, selling bees. T (mostly).