when doing the alcohol kill & bee vs mite ratio it's my understanding that it's best to use nursery workers. how accurate of a count do you suppose you would get by using the bees that are bearding at the entrance to the hive?
Mites are in the brood chamber so you wouldn't get a accurate from bearding bee's plus these bee's will fly when trying to measure out a scoop
do you have screen bottom board? if you do try this
1: place sticky board under screen bottom board (just a piece of white poster board paper with petroleum jelly or veg oil smeared on it
2: take hive top off and inner cover
3: if you have two brood chamber place window screen on top the take 1 cup of powder sugar pour it on to the screen
4: take bee brush and evenly spread it a cross the top
5: now do the same on the bottom
6: set hives back up
7: leave the sticky board there for 3 days
8: take sticky board of look to see how many you got on it
9: in the fall the max number of mites in 2 mediums is 30 and 40 in 2 deeps if you have more than that
10: TAKE ACTION!
hope there's 0 on that board good luck HAPPY BEEKEEPING :bee: