Art,
Let the laying worker hive smell a real Q rite hive , just like newspaper. But use screen board for 7-10 days , just give a small entrance up top, keep bottom entrance protected, laying worker up top will smell strong Q below. Have done this 2 times per. Iddee worked great , just. Take screen away. After you see top box stops laying. If you still have laying hive go out 50 yards and shake out.