Hello all,
  I do not use excluders on a regular basis however do carry a few with me for various purposes.  This spring I was exchanging out old comb in the brood boxes at one of my yards and by chance spotted the queen in 4 out of 20 hives at that location.  On an impulse,  I inserted a queen excluder and added two supers.  Those 4 hives had not yet filled the two supers when the other hives in the yard were working on the fourth box.  I mainly feel the excluders restrict brood laying in the early season too much unless I reverse hive boxes often. I do use them frequently to isolate brood above just prior to making splits and to locate a hot queen by inserting them a few days before a major teardown.
   
  Bob Rauch
  West Central Missouir   


 
  Bob Rauch

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