Hello Al,
Sorry to hear of your problems.  Hope you will not have to sell out as at
least in the U.S. auction prices are disappointing.  In looking carefully at
the symptions you have listed I have to wonder about tracheal mites. Can you
describe the method you use to control tracheal mites and have you sent any
samples in for tracheal mite testing lately?
Sincerely,
Bob Harrison
Odessa, Missouri
Ps. A sample of the odd foulbrood should also be sent to the lab. I do
testing for local beekeepers but only after my  work has slowed down. I find
tracheal mites and nosema in all hives without a regular treatment program.
Because of my hectic work schedule  I recommend all samples be sent to the
bee lab in Beltsville, Maryland. Do you have access to bee testing?