I have found that my bees round up and chase SHB pretty well. I know that SHB lay eggs in small cracks and other inaccessible areas. I would like to know what types of materials are safe for caulking up areas like the gaps on wooden bound queen excluders. I also have Mann Lake hive top
:shock:feeders the plastic twin tank type that provide lots of places for egg laying. I want to use expanding foam to completely seal off the complete underside of these things except for access to the syrup chambers. If I give the foam time to cure do any of you think this could harm my bees? Can latex caulk be used?