Peter Borst wrote:
> I realize supersedure rates are high, but I would suggest there is
> some other cause besides coumaphos, especially when you notice half of
> the untreated queens were gone in less than a year.

Presumably the 'control' queens were mated with 'uncontrolled' drones?

Best wishes

Peter Edwards
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www.stratford-upon-avon.freeserve.co.uk/

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