the method where you use cardboard to with boric acid.
let me see if i have this correct. take a 4x4 section of cardboard rip off one side exposing the ripples. pour in boric acid until it almost comes to the edge. once this is done add tape gorilla or duct to prevent the bees from getting into the BA once it is taped back up lay it ontop of the frames.
Is this correct?