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Date: | Tue, 24 Jan 1995 08:02:00 -0700 |
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I've seen a lot of colonies with Apistan hive strips installed, spring
or fall, and the queen continuing to lay, apparently normally.
That's not to say fluvalinate strips cannot harm queens, though.
At the Canadian Apicultural Research Symposium last week in Edmonton,
Dr Rob Currie of Manitoba reported a set of trials with Apistan queen
tabs in queen cages.
The details will be coming in a proceedings, but as I remember, adverse
effects on queens were slight at three days of exposure, definite at
seven days of exposure (the treatment min-max range). Effects were
increase mortality (40 % at 7 days, compared to 10%) and possibly
increased supercedure (but not statistically significant).
Placement of the tab under the screen, rather than completely in the
cage, resulted in slightly less effect.
Only 1 of 151 varroa subjected to this treatment, survived.
Kerry Clark, Apiculture Specialist
B.C. Ministry of Agriculture
1201 103 Ave
Dawson Creek B.C.
V1G 4J2 CANADA Tel (604) 784-2225 fax (604) 784-2299
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