>Probably the most effective way to slow development of resistance is to
alternate use of two or more different pesticides which work by totally
different chemical pathways. For mites perhaps alternating between MAQS,
oxalic acid and amitraz would slow development of resistance for all three
products.
This simple and effective strategy has been recommended from the
beginning. Unfortunately, few commercial beekeepers bother to follow it.
We are often our own worst enemies.
--
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com
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