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Hi all
I am of the opinion that HopGuard is a scam to unload surplus hops on hapless beekeepers. What do you think?
Re: HopGuard
The instructions say
Leave the strips in the colony for four weeks. Retreat, as necessary, up to six times per year.
Researchers say:
Mite drop in colonies lasted for about 7 days with the highest drop occurring in the first 2–3 days after treatment. -- DeGrandi-Hoffman Exp Appl Acarol (2012) 58:407–421
Anecdotal:
since the HopGuard strips tended to dry out in the hive, they didn’t continue to kill mites after the first few days. As a result, beekeepers were adding a new set of strips every week for three weeks. Mann Lake, the company that sells HopGuard, was advocating this procedure.
Dr. Rob Currie (Professor at the University of Manitoba) described his test of Hopguard by saying that it apparently must have been "a nice tasty snack for the mites" because it was so ineffective. It performed the worst in his tests of all of the treatments he tried.
PLB
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