Varroa mite's best friend - Deformed Wing Virus - Deadly combination for honey bees Apis mellifera
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- Опубліковано 17 жов 2024
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Varroa mite's best friend - Deformed Wing Virus - A deadly combination for honey bees, Apis mellifera
This is video 2 of the series trying to understand the strange relationship between Varroa mite and the Deformed Wing Virus. Here we present some evidence showing that Varroa establishes a mutualistic relationship with a common honey bee virus - DWV.
Who is the biggest problem in beekeeping - Varroa mite, the viruses it spreads, or the combination of both?
Video One here: • Is Varroa mite the big...
The link to the article cited in the video: www.pnas.org/c...
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Let me know your thoughts. Dr. Gennaro Di Prisco the first author of this article agreed to come to the show and he will be answering some questions. Let me know yours. Cheers
Great video series and timing. I'm just now finishing up and incredibly difficult year battling varroa. This year I used Api Life Var, drone brood removal, brood breaks, hive spacing and positioning, Hop Guard III, and now finishing up Oxalic Acid vaporization. Yet, all year the mites have returned in record time.
After my second to last treatment (Hop Guard III) the mites went from reasonable levels to completely overwhelming in ONE MONTH. I found multiple colonies with severe DWV that were in the beggining stages of collapse. I did emergency Oxalic Acid treatments spaced 4 days apart and have the mites back on the ropes and the hives recovering.
I have been doing a lot of research lately into the mites reproduction traits and abilities, and put a lot of thought into how different treatments do and do not work with the reproduction traits of varroa. I'll be putting together a video soon detailing some of the research papers I found helpful, my own understanding of it all, and what I've learned and personal thoughts. Hopefully it will help somebody the way your videos help!
Sorry to hear you are having trouble with mites. Where are you located? Some treatments don't work well in some climates. Looking forward to see your video Sr. Thanks for watching.
@@InsideTheHiveTV I'm in northeastern CT, USA. The Api Life Var was applied in spring but we had temps drop from 60-70's F to 40-50s F for two weeks during that treatment which I know negatively impacted the efficacy. The Hop Guard III was during regular summer temps (80-90 F) but isn't a fumigant anyways. All the passive parts of the IPM are normal from other years.
I can't help but think there's a new beekeeper around that has a mite bomb that went off shortly after my Hop Guard III treatment. The rapid increase in mite levels and the huge amount of DWV so quick seems like a colony or multiple colonies collapsed from mite/DWV and my bees robbed them out bringing the high loads of DWV carrying mites back with them.
Otherwise the timing doesn't make sense to me. It took only one month for the hives to go from health with low mites loads (post Hop Guard III) to collapsing. So that tells me the mites with DWV infested the brood within a week of completion of Hop Guard III treatments and positive alcohol washes.
So, if the immune system is compromised, are they more susceptible to other viruses/diseases, and if so, how does the colony survive this?
@@mellifera6247 to my knowledge if the immune system is compromised it makes it so the immune system is running at higher than normal levels at all times but limits its ability to "spike" when it's needed. For a colony to survive, the beekeeper needs to be aware of the situation and treat for mites quickly. Once the mites are gone, if the colony hasn't collapsed to a point of no return, then supplemental feeding and preventing robbing can help the colony recover. It also depends on the time of year; if it's too late in the year, the colony may not have enough time to rear enough healthy winter bees to survive. If that's the case (and the beekeeper has verified the colony is no longer diseased and is just weak) than it can be combined with another weak colony for the winter.
Among other things.....
Thomas Stone Interesting. I think the immune system was suppressed and the immune gene expression data showed down regulation, compromising the system that way. I guess both ways could be bad.
Thank you looking forward to seeing you again. Till then blessings to you and your family 👍🏽❤️❤️❤️❤️❤️
I am from srilanka, Jaffna. I am involved in beekeeping since 2016, we dont have much problems regarding varroa mite. We have the indian bee apis cerena strain. about 1 percent of the hive having these which are in the natural environment. Here is an insect called #pseudoScorpion which can have the ability to digest these varroa mite.
Varroa is not a problem for Apis ceranae the asian honey bees. This species already have the tools to fight Varroa naturally. Thanks for stopping by.
Great video, question for you sir: do you have opinions on the how the physical damage to the wings occur, is it the very presence of the virus that causes the wings to be malformed during their development or is it the physical damage caused the varroa feeding or nibbling at the wing buds. I always believed it to be the former but I have been told be a professional that it is the latter. I would love to hear your thoughts.
That is a good question for a full video. However, the data indicates it it's the replication of the virus at the tissue when the bees are developing. Many variables to consider. the time of the virus infection, the genetic strain of the virus, the genetic strain of the bees and the amount of virus getting into the bees at the time of the infection. I will explain more in a future video. Thanks for the idea and the question. Cheers
Excellent video learn something every time i watch .
Glad to hear it!
how can we control Varroa mites in hives?
Can a brush-like construction be placed after the entrance so the bee touches it with her back so the medicine from the construction touches the varroa mite placed on bee's back?
I read about this invention to delivery medicine to bees. The problem is that only foragers will get into contact to the brush and that might be enough to deliver whatever you want to your colonies. Are you trying something?
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Super video und über ein Abo von dir würde ich mich sehr freuen wenn du mir auch was schreiben würdest and
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