http://newatlas.com/emerging-dwv-virus-strain-deadly-honeybees/44130/
Viral infections have been identified as a major factor in the continued decline of bee colonies, including the devastating, parasite-transmitted Deformed Wing Virus (DWV). Now, European researchers have shown that a recently-identified second strain of DWV is even more virulent than the established type, and the study calls for a better understanding of the genetic diversity of pathogens to help fight them.
The study, conducted by scientists in London, Belfast, and Germany, examined both strains of the virus, DWV-A and DWV-B. Lab tests found that the latter was much deadlier, with infected colonies collapsing faster than those infected with DWV-A.
"Scientists have been searching for a cause or causes for the increased colony mortality that beekeepers have experienced over the past decade," says Professor Robert Paxton, of Martin Luther University in Germany. "The emergence of DWV-B in Europe may be just that cause."
The researchers also conducted field tests in Great Britain to determine the prevalence of each strain, and found that both were widespread throughout the country.
"Our study reveals the geographic distribution of this virulent virus genotype in honeybees across Great Britain," says Professor Mark Brown of Royal Holloway, University of London. "This may help us understand regional differences in honey bee mortality."
While DWV-A is commonly found around the globe, little is known about the status of DWV-B outside of Europe. Conflicting studies have reported both its presence and absence in North America, but either way, the researchers express concern that "Europe may be an important source of and/or route for the global spread of emerging and re-emerging DWV strains."
The team concludes that its findings, along with the knowledge gaps it reveals, highlight the need for a better understanding of the genetic diversity of pathogens, in order to better coordinate efforts to combat them.
sooo its back to the mites that vector DWV------ :rolleyes: keep the mites down and keep the
protien levals up-been a solid foundation for return on investment for years-- :rolleyes: RDY-B
...just thinking out loud here;
Since Europe has been OAV'n for decades could there be a weakness created from this exposure? I hope not.
that would be a big fat no on the pont oav--justsaying-- :smile: RDY-B
we as beekeepers should never become overconfidant in the abilitys we have
this will allow a sleeping giant to awake--ITS THE MITES and I can give exampel
mites that are under control in a colony breed at a rate that the mite cycle is
generated by its own means--what this means is in the real world mites mate with there sisters because
they cary there own line--so when mites get over abunadnt in a colony-there are more mites that enter the cell
not just the one that lays eggs--but two that lay eggs--know the first mites are males-they will breed with the females
know that there are more than one mother mite laying eggs that first hath as maels-there are two lineage of mites
so with this we see the adaption of any new genitics to the mite line--with this we see major mite resistanc to mitecides and also the start of supper mites that vector new viruses and cant be controlled by standard means---nosema appis
versus nosema cerana is a parellel although the to are unrelated to the other(mitesdont vector any noema )--IF THE MITES ARE NOT KEEP IN CONTROL
YOU ARE NOT ONLY SHOOTING YOUR SELF IN THE FOOT BUT THE WHOLE KEEPING COMUNITY--just saying-- :wink: RDY-B
>IF THE MITES ARE NOT KEEP IN CONTROL YOU ARE NOT ONLY SHOOTING YOUR SELF IN THE FOOT BUT THE WHOLE KEEPING COMUNITY--just saying-
Actually if you ARE treating for mites you are perpetuating genes that are counterprodutive to the whole beekeeping community.
?If you?re not part of the genetic solution of breeding mite-tolerant bees, then you?re part of the problem?? Randy Oliver
You can't breed bees that can survive mites without treatments by treating them.
Quote from: GSF on August 17, 2016, 08:31:14 AM
...just thinking out loud here;
Since Europe has been OAV'n for decades could there be a weakness created from this exposure? I hope not.
Europe has been OA'ing for decades not OAV'ing for decades. What you should be thinking is they have had plenty of time to eradicate the problem with OA yet they haven't.
QuoteYOU ARE NOT ONLY SHOOTING YOUR SELF IN THE FOOT BUT THE WHOLE KEEPING COMUNITY--
QuoteYou can't breed bees that can survive mites without treatments by treating them.
These are two opposing views that constantly appear on this topic. One is supported by science and history and the other is supported by fear. Many newbies will try the science and history version but are easily swayed by the fear version.
These are two opposing views that constantly appear on this topic. One is supported by science and history and the other is supported by fear. Many newbies will try the science and history version but are easily swayed by the fear version............... Which ones are which though
You are not familiar with Randy Oliver?
Quote from: Acebird on August 18, 2016, 09:44:55 AM
You are not familiar with Randy Oliver?
I'm still pretty much brood right now so... no. I hope to make it to newbee in a year or two. I was pleased with myself for knowing who MB is.
Quote from: Michael Bush on August 18, 2016, 08:47:09 AM
>IF THE MITES ARE NOT KEEP IN CONTROL YOU ARE NOT ONLY SHOOTING YOUR SELF IN THE FOOT BUT THE WHOLE KEEPING COMUNITY--just saying-
Actually if you ARE treating for mites you are perpetuating genes that are counterprodutive to the whole beekeeping community.
?If you?re not part of the genetic solution of breeding mite-tolerant bees, then you?re part of the problem?? Randy Oliver
You can't breed bees that can survive mites without treatments by treating them.
yes yes --this is not that bees cant handel high mite loades-they can --this is about the virues they vector
bees cant hadel the viruses -they cant handel the mutating viruses-Randy oliver and his close famliy make more
than 1/2 there income from bees--they treat same as anybody this i know-RDY-B