Jerry writes: Now, things that I do know from our data that are associated with supercedure: 1) Use of chemicals to drive bees from honey supers 2) Addition of lots of empty supers during a nectar flow 3) Environmental stressors - lack of space, over-heating, agri- and industrial chemicals inside the hive (volatiles in the air inside the hive) and (this is a guess, the others are based on data - mite density). Do these increase or decrease supercedure? How much? pb