I find that I have to shake the bees REALLY hard when using powdered sugar. And to shake them for a fair amount of time before the mites seem to dislodge.
I read that powdered sugar testing is not as effective as ether but that it was developed so that the bees wouldnt be hurt. I think that a fair number get messed up anyway by my shaking method.
As a side note, I havent done any sugar or ether rolls lately but I am starting to see alot of mites on some colonies (on adults, brood and chewed up drones). However, on colonies with SBB which I was using to monitor mites, only seeing about 2 mites per day though. Guess I need more SBB.
The ether roll and soapy water kill the bees. The powdered sugar does not.
do I have to perform test on all my hives or a persentage
I try to check each hive monthly using eather roll. I do this when going thru them (503 hives)
just South of Lansing Michigan
Hiw long dose it take to get 300 bees in to a jar?
>Hiw long dose it take to get 300 bees in to a jar?
Depends on the method. If you try to get them to walk in on their own, a very very long time. If you try to herd them, even longer. If you shake them off into a box and them pour them in the jar, not long at all.
with the sugar roll how many mites untill I treat?
A beekeeper once showed me the sugar test and what he did was take the container and run it downwards on top of the bees (instead of trying to scoop them upwards). The bees literally dropped right in.
The article I have says that in the fall 0.03 or more mites per bee (9 or more from 300 bees) needs to be treated. Colonies with more than 0.12 will have increased mortality and colonies with more than 0.25 mites per bee will almost always perish thru winter.
Greetings . . .
Here's some info from Beekeeping for Dummies, p177:
Use powdered sugar shake method twice a year - once in EARLY spring, once in LATE summer.
If you count ONE or more mites, proceed w/ treatment. Seeing dozens of mites means infestation has become significant. Take remedial action fast!