i started several nucs this spring using frames of brood and added queens.
All queens were released OK.  In some colonies she started laying within a
week or so, others are slower to "come around".  How long is reasonable to
wait before reaching a determination that the queen is not productive and
taking steps to replace her? Also, if there is no capped brood left (and no
eggs) will the workers accept a new queen readily, or should I introduce her
with fresh brood (capped) from a queenright hive? /C.Crowell