I put two Apivar strips into each of my two 8-frame deeps on September 7. The Apivar instructions say to leave the strips in for at least 42 days, which is today. Two days ago I put a sticky board under the bottom board of my hive, and when I pulled it out today I saw a dismaying number of mite bodies. I counted a total of 158.
Is that level of mites on my sticky board conclusive evidence that I need to do something more severe to treat them? Or do I need to do a mite wash to be certain?
And if treatment is mandated, what next? Should I try formic acid, oxalic acid, thymol?!
I’m a little freaked out because I thought Apivar was the most effective treatment option …
Meanwhile, I plan to leave the Apivar strips in for now (instructions say up to 56 days is okay if there is a heavy infestation).