Lois,
If you try to run two colonies out of the same long box...
1. one on each end
2. each with their own entrance
3. honey in the middle
4. queen excluder on each side of the honey.
Won't the two worker populations fight in the honey middle ground, or worse, cross over to the other side and kill the other queen?
I have always heard of a solid divider board between the two, or a double screened bottom board where the two populations cannot reach, pass through, nor touch each other.
There were no problems for quite a while. The queens were born about same time and one came back in the other side of Queen excluder.
After a month I moved middle queen down to west.
So there was Brood, QE, honey, QE, Brood.
I think queen on 1 side east swarmed. So I removed QE. And then Queen on west moved into honey area so I took other QE.
She has full run of hive now. Will be interested to see how far she will lay. May be ok may be not.
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