Eric:
My experiments with screened bottom boards have produced best results  as 
follows:
1)  Blocking most of the airflow through the screen bottom with a  piece of 
sheet metal, plastic strip, etc below the screen bottom until  the bees have 
enough population to maintain brood temps easily.   I observed consistent 
problems with spring buildup and production  performance before implementing this 
change.  Can leave airflow  block in place year round.  Good way to monitor mite 
fall if  checked regularly.
2)  Usage of a slotted rack above the screened bottom board.  I  have 
observed works best with boomer colonies,all extra space between  slots and bottom 
board is jammed with bees.  Also,minimizes hanging out on  hive entrance or 
sides.  
3)  Additional ventilation provided through inner cover screen,  propping 
hive cover, etc.  Again, my observation is this works  best with a strong colony. 
 In a dry year, like we have had here this year,  my colonies have performed 
well with no additional ventilation.  
4) Crowding the bees near the end of the nectar flow encourages/speeds the  
capping process.
 
Jerry Wallace
Atlanta,Ga
 
 
 
 
 



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