A broad or bloated abdomen, filled with liquid, is supposed to be associated with CBPV so perhaps when they dry out they look shortened? Them darn CBPVized abdomens.
A broad or bloated abdomen, filled with liquid, is supposed to be associated with CBPV so perhaps when they dry out they look shortened? Them darn CBPVized abdomens.
These ones weren't dry. Some of them were still twitching.
The bees must detect that they are defective in some way and dispatch them.
Pesticides!
abdomen stunting pesticides?
Should have been a winking smiley on that last post. I'm not being helpful.
Got the joke just continuing the nonsense as is my wont!
You could try a Nosema test (again a spot of bloating is possible, send me some if you don't have a microscope) although I think CBPV is more likely. Worth looking for Acarine too, it was common enough here last winter. They may, of course, have a combination. A twitchy death sounds like a virus that infects ganglia, ie CBPV.
Ah ... twas me that needed to see a winking smiley!
Don't look nosemic to me. Those ones tend to be bloated and crawling. CBPV sounds more likely. I have seen the odd bee like that from time to time but never in any significant quantity.
It will be interesting to monitor that apidea as it has 10 frames well covered with bees at the moment.
I gave it a few drops of Oxalic today.
Does that virus spread from bee to bee once they have emerged?
Experimentally through the oral route and, less effectively, across the cuticle. Adult bees, 5-6 days to show symptoms.
http://www.mdpi.com/1999-4915/5/9/2282
I Toplak et al - 2013
Chronic Bee Paralysis Virus and Nosema ceranae Experimental Co-Infection of Winter Honey Bee Workers (Apis mellifera L.)
Although there are people reading this who'll know *much* more than a quick Google of mine will reveal ....
Last edited by gavin; 13-11-2013 at 10:35 PM.
Some stuff on the DEFRA site as well
https://secure.fera.defra.gov.uk/bee...cfm?pageid=275
CBPV mainly attacks adult bees and causes two forms of ‘‘paralysis’’ symptoms in bees. The most common one is characterized by an abnormal trembling of the body and wings, crawling on the ground due to the flight inability, bloated abdomens, and dislocated wings. The other form is identified by the presence of hairless, shiny, and black-appearing bees that are attacked and rejected from returning to the colonies at the entrance of the hives by guard bees.
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