Hi Juanse:

Although not a guru in any sense, I have  experienced  fast heavy flows from 
Canola here in Alberta. I put on  five or six medium supers before  the flow 
starts. The bees tidy them up and get them ready to use immediately. The 
more cells they can use to ripen the honey the more they can gather.

I use excluders and can extract the full ones  and put them back out. There 
does not seem much advantage to bottom supering. If you can leave the supers 
in a dehumidified hot room, you can take them off before they are fully 
capped.

We often get 200 to 300 lbs per hive coming in during the Canola bloom which 
normally lasts about a month.

                                    Best regards

                                    Donald Aitken 

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