What is the best treatment for varroa mid summer? I started with a package in the spring and didn't treat them. We now have varroa and DWV, even after a recent break in the brood cycle. Temps easily go into the 90s every day, eliminating a lot of our options. I also need something that will work in a TBH. I did a powder sugar treatment a few days ago.
I have Apistan getting delivered tomorrow (6/23, Monday), but I'm not sure I want to put it in the hive. I've been researching and researching, but haven't seen anything appropriate for high temps. I've read on an old post that even though MQS are recommended for up to 92 degrees, it's best not to use it in high temps. Also, not sure how I would add ventilation in the TBH. We have a closed bottom board. Lots of options recommend removing honey supers.... not possible with TBH. :-(