Based upon Jerry Hayes' article, "Queen Excluder or Honey Excluder?", I am attempting an experiment. In order to increase honey production I am switching to an upper entrance exclusively. The configuration was: screened bottom board, lower entrance without entrance reducer, two deeps, queen excluder, medium honey super, ventilated inner cover with an upper entrance, then telescoping cover. Here's the problem: I completely closed off the lower entrance last night after the bees were all in. Today, there are ZERO bees using the upper entrance. No bees are leaving the hive. Since a small number of them had already been using the upper entrance before, which has been there all along, I expected at least a few to be using it now, but there are literally no bees flying today.
Should I give them time to figure this out, or am I doing something wrong?