Drone cell preference (DCP) is partly influenced by the proper- ties of the brood cells. 

What does that mean?? Proper ties???   

I am Loathe to argue with Randy's theory as I have no data,  but it seems to be visually wrong.  I notice a what seems to be a lot more mites in drone brood.  But I suppose its entirely possible the worker brood is as badly infected and I don't dig out workers like I do drones.  
Could it be possible the longer uncapped time alone is responsible for increased infection?  This would support Randys assertion and what we seem to see in the hive itself.  A longer exposed larve atime means more chances for the random worker to deposit a mite??  I would also surmise that drone brood requires more visits by workers for feeding larva,  therby also increasing the opportunities?


Charles

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