CBPV

[blackcloud]

Nothing at the moment
I guessed the upended blocks would be enough at 440mms high.

 

[Jules59]

Ive had a case of CBPV again this year. This time I went straight in with removing the OMF and jacking up the hive (WBC) on bricks and raising up the double brood boxes with an empty brood box. I requeened asap and they recovered over 6 weeks as the offspring of the old susceptible Q died off.
Of course the empty brood box was full of new comb by the time I came to remove it.

 

[user 819]

My affected colony is going well again no more dead bees seen under neath and Q has raised her laying rate and now up to 15 frames of E/U/S.

 

[blackcloud]

Mines been on concrete blocks for six days.
There was a drop of around 20 a day initially but it slowed right down to a couple mid week
Today we observed it and there was zero all day.
Checked both broodbox for any sign of infection and there was none.
Confident then enough to reinstall a sterilized floor and stand they're now on observation rather than special measures.
One thing I did notice was healthy bees flying down to the slab .I took to sterilizing that as often as possible.Some sort of liner sheet or just change a bin liner frequently I suppose.

This case was fairly mild but it's got my vote regardless.
Big thanks to JBM for sharing the device.

 

[user 819]

Affected colony was placed back on the UFE floor yesterday and doing rather well, having dropped to six E/U/S frames from ten after having carried out an earlier AS, the Q has laid up well to 15 frames.

The cone entrance (great thinking Neil) has prooved effective and the bees managing to protect the 2" square opening, a few wasps about but not enough to cause a nusiance.

Meanwhile the other AS half failed as the VQ failed , likely ended up a tasty snack for a bird.

 

[Newbeeneil]

The cone entrance (great thinking Neil) has prooved effective and the bees managing to protect the 2" square opening, a few wasps about but not enough to cause a nusiance.

I understand the "Funnel floor" got a mention at a Bee Health Day arranged by the NBU yesterday........... fame at last