What can you tell me about slatted racks. My dad picked up a few a couple of years ago, so on put them on (under) three packages that i got last year. Had a very good honey year but lost two of three during the winter, they did not starve. The mice found the racks to be a good home.

So tell me....

When do you use them? all year? summer only? Was it ok to put them on new packages? should I have taken them off for the winter?

What were they designed to do and do they work?