A box of frames that were extracted. We do NOT set boxes out for the bees to 'clean up' after extracting, they are stored as wet frames that are 'sticky' with that last bit of honey still in there. when you put a box of stickies above the excluder, bees go thru immediately, the smell of the honey draws them up.Grozzie, what is a "box of stickies"?
The key tho is getting to the point you have stickies to use. If all you have is fresh new frames, then no, an excluder is not going to be helpful, the bees wont go thru if there is nothing above to draw them up.