Re: How long should an escape board be left on if SHB are in the area? On or off the
I don't really care for the escape boards. Even after 48 hours there can still be bees inside the supers and I don't like surprises. I do find them handy to put an extracted super from the apiary on an escape board over in my nuc yard. The strays then join the weaker nuc's and it usually only takes about 6-8 hours to be clean.
3rd Year New-Bee - 27 Hives, 4 Swarms, 0 Cut outs in 2015 season
Zone 10 - B - Utila, Bay Islands, Honduras