BEE-L Archives

Informed Discussion of Beekeeping Issues and Bee Biology

BEE-L@COMMUNITY.LSOFT.COM

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
randy oliver <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Tue, 28 Apr 2009 08:16:00 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (41 lines)
>
> Is the nosema organism killed in burning the inside of the hive?

Yes.


> > If there is no sign of nosema ceranae that kills a colony and the
> equipment is
> reused, is the new colony doomed?

If there was no sign (spore counts), then why would you suspect N ceranae?


> > What is the conservative approach to reusing equipment?

Depends upon how conservative you want to be.  Dr Cramer has demonstrated
that N ceranae spores are easy to kill by heating the combs for a few hours,
or by bleach spray.  They also can be killed by acetic acid fumigation, as
Bob does.  It appears that they degrade with storage, even in the cold.

I have been recycling boxes of brood comb in my N ceranae test yard.  I gave
most of the colonies a single fumagillin treatment last fall.  I split the
colonies last week, as they were all ready to swarm.

However, even the untreated controls have built up well, but have higher
spore counts than I'd like to see (about 10M), so I will see how they do.

In my area (and in many other areas), N ceranae does not appear to be the
kiss of death.  However, in other areas it may be, especially in conjunction
with other stressors.

In answer to your question, it probably isn't worth the cost of treatment
unless you are sure that you actually have a nosema problem.

Randy Oliver

             ***********************************************
The BEE-L mailing list is powered by L-Soft's renowned 
LISTSERV(R) list management software.  For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html

ATOM RSS1 RSS2