I don't intend to be a TF(I'll go for a partial approach using one OA dribble/year) but I'm curious about one thing.
I have a yard of nucs(some of them are really strong by now in singles). Last treatment was 1 year ago using OAV, no VSH just regular queens from my area.
How do you explain the huge differences in varroa infestation btw. hives?
Bigger hives are much prone to higher numbers as they lay more but in my yard it turned out to be the opposite:
Found 5 frame nuc with 20%, some other with 5% and some with less then 0.5%. I was inspecting with the purpose of gaining knowledge regarding the correlation btw. bee behavior and mite infestation. In many of my nucs I can see bees being a bit too restless and found this 2 being so calm so I tested these for mites and found those low numbers.
So one is a 10 framer and the other a 5 framer with the same 0.5%.
Dfa (Humid continental warm summer climate)