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For one person including closing off bottoms? Problem is you have to go back 3 times, or four or 10!

Thanks for the suggestion, if it worked faultlessly I still couldnt consider oav with brood. By the time you close off all the hives I would have my cheap as chips strips in and good for 45 days, no further treatments required, treat and forget. It would take over 6 years of amitraz treatments...

I dont disconnect the battery for up to 60 treatments, I just treat one, pan still hot, next, and so on. I do leave the hive closed for at least the time it takes to treat another 5 hives though. My advice though is if you have lots of hives, pick another treatment, it is 2 weeks of my life...

Yes, I could see that happening, bees thinking something wrong with the queen, that was why I was going to cage a whole frame to keep the queen laying for at least some of the time. I previously used to starve the bees (well not feed) in August then treat, the last 2 years I've had brood but no...

I'm definitely doing this next season, I'm thinking a mesh to allow the queen to lay in one frame only and remove that. Is it not good to cage a laying queen for 16 days needed to be brood free. I'll probably trickle OA rather than Apiguard or oav though.

I'm not sure about the robbing either. I know from personal experience colonies collapse into others though, I have actually seen it. All it takes is one colony with a high load, collapses into another with up to 12 mites per bee, within one brood cycle that in turn collapses, usually without...

Thats what I meant counting, before and after. Alcohol wash. More expensive than the Amitraz alone.

This is my problem with oav, you need to test before and after, massive job and thats before the one full month in a year treating the hives. I actually managed well vaping with double brood in March this year, seemed to work well. I cant afford a single hive to be loaded as afb knocks on the...

Amitraz treatments arent particularly temperature dependent, as long as not clustered

Have you tried top treating?

I vape nucs under the omf too, I certainly see less white bees and it seems to get much less vapour even with a much larger dose. They are usually brood free and under those conditions I think OAV is effective.

I think for me OA vapourisation is the most inefficient, labour intensive and pretty useless treatment with brood present there is. I wasted 15 full days this year on it, 600 miles travelling and I still lost many bees to varroa. NEVER AGAIN! I had to treat again with Amitraz and only then did...

When they jump onto the pan they do, I've had it 3 times in less than a year

That is late for Asian hornets, ours released queens a few days ago and we must be 7-10o higher temps than you? Id be tempted to try and poison a few and you might kill a few hundred queens

Well I've spotted a few queens looking for residence over the last few days so it looks like more work for next year. The only hornets I've seen for the last month.

Yes, also when a colony collapses it leaves stores, infected brood, loaded with up to 12 mites per bee and joins a healthy colony, one brood cycle and that colony collapses and the cycle continues.

They dont want to though, they think bees evolve in a few years

I'm having this very problem, every year I'm losing colonies because of Varroa. My counts are low, then nearby non treaters are causing some of my colonies to crash.

Apitraz is the approved treatment, Taktic and Sytraz are the homemade (Cheap) non approved treatments.

Amitraz is the ingredient in Apitraz