Last weekend I removed the Formic Pro I had placed on the hives on August 13. Formic acid is a naturally occurring chemical, most notably found in ants and some stingless bees. It is also present in honey bee colonies so bees have a natural resistance. It is not absorbed by wax and dissipates from the hive, so it can be used while the bees are also collecting honey.
What you see here is the strips after two weeks. Most of the acid is gone and what’s left is a bit like cardboard. I scraped them out with a hive tool and put them in the trash. The bees were surprisingly gentle, which made it a pleasant morning.
May you prosper and find honey.