Shouldn't be necessary as long as any midwinter brood is culled.
You would think so wouldn’t you?
My most rogue colony that dropped thousands of mites had a clean start in July when they were vaped as a swarm.
You would think so wouldn’t you?
My most rogue colony that dropped thousands of mites had a clean start in July when they were vaped as a swarm.
How much the swarm dropped?
.
So in 3 months they ended up with 1000's?
When they were a swarm Did you OAV them before brood was sealed? Even then it would be difficult to explain how the levels got that high without mites coming in from outside.
Just thought of another possible explanation- the reproductive rate of your mites is far higher than the norm?
How much the swarm dropped?
.
An end row hive with strangely high levels is quite possibly explained by drifting
And drop levels get skewed now as a higher percentage of mites will be becoming phoretic.
Crossed my mind
I have plans to move the hives about in winter so that they are not in a straight line..
Oh well.....next year is another year
If you've treated them all with multiple OA doses, you should have got most of them as they emerged. Is it possible that they're being reinfected from neighbouring beekeepers?
I have vaped my two bad hives probably several times and still getting high varroa drop. I still think its a problem getting the vape fully into the brood box as I have nadired supers. So I'm thinking of doing trickle treatment late December instead of vaping, at least I'm tackling the brood box where the cluster will be. Maybe I should vape & trickle!
Yes, good point a chance to look for brood.If you are going to open the hive then maybe you should look for brood?
Have a look at this if you are on Facebook
https://www.facebook.com/richard.no...026305¬if_t=like¬if_id=1510590470873653
Thinking about it a bit more, probably quite difficult looking for brood as I would have to separate the cluster and disturb the hive unnecessarily. Maybe if I do trickle I will try and peep between the frames to look for sealed brood, larvae etc. I suppose brood cappings on the varroa board is another indicator, but sometimes Im not sure whether its brood or store cappings. Its easy to tell on the frames, bit more difficult on the varroa board.Yes, good point a chance to look for brood.
A what if question...what if I find brood?
ps Your Facebook link didn't work for me
FB link not working for me either.
If you are going to open the hive then maybe you should look for brood?
Are you pointing us in the direction of LASI's idea of opening up the brood nest, frame by frame, and removing the brood so that you can then vape a broodless colony? I've always thought of vaping as being quite benign, as opposed to OA trickling where you have to remove the Crown Board for a minute or two. Brood removal looks awful!
CVB
Awesome machine especially if you don’t have neighbours
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