In a message dated 12/08/2008 22:51:03 GMT Standard Time,
[log in to unmask] writes:
About time before resistance sets in I have no idea. But I have decided not
to change active principle till that happens.
If a beekeeper on such a large scale as you are uses Amitraz on every
colony every year, which seems to be what you are doing, then resistance is likely
to occur sooner rather than later. Why not use it in rotation with other
pest management systems with a different mode of action?
Chris
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