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Date: | Tue, 5 Dec 2006 19:16:43 +0700 |
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From: Bob_Harrison<[log in to unmask]>
>My own testing which I also reported on BEE-L showed comb on which
>bees have crashed from varroa and have displayed parasitic mite
>syndrum (PMS) signs will crash from virus with varroa loads below
>what is considered by our researchers to be high enough to warrant
>treatment the next time a swarm is placed on the PMS comb.
>I shared on BEE-L about how one large Florida beekeeper would run
>his deadout comb through a bogi uncapper and cut half the comb off
to >help with virus.
Hello Bob,
Was this clean comb or comb contaminated with cumaphos and/or any
homemade products? There is no secret that there are other veterinary
products made for treating animals, that has/is being used against
varroa.
> my source said radiation does kill all virus on comb.
No doubt. But are you sure this will help? From info I got virus will
not survive outside the host cell for long. But so far there don't
seem to be any proper test done on DWV on that. I got this from
Ingemar Fries when I asked.
<quote>
What I know regarding persistence of DWV is that in colonies with
serious symptoms and high content of DWV in brood and in adult bees,
the provable (PCR) level of infection in brood will disappear when
mites are removed with chemicals. The infection level in adult
population will not disappear as quickly. No long time studies
available.</quote>
This would to me indicate that the hives you were referring to were
affected more from contaminated comb than from virus. I know we talked
about this recently. But if virus really would survive outside of a
colony it would affect us badly as we would have to start replacing
comb at a much higher rate. Costly radiation treatment might not be
the cure to you friends hives, the bogy approach sounds more
realistic... and burn the vax cut off! Residues are starting to show
up here in vax comb returned from foundation producers. Next problem
might be to check that your foundation supplier has clean vax :-(
And like you I will try some hives on 4,9 mm comb next season. Start
with a couple of yards, half small and half 5,3 mm cells. It will
probably take me several years to get it drawn out in the brood nest
with the short summer we have.
--
Regards
P-O Gustafsson, Sweden
http://beeman.se
-- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---
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