Page 1 of 3 123 LastLast
Results 1 to 10 of 22

Thread: Deformed wing virus

  1. #1
    Junior Member
    Join Date
    Mar 2012
    Location
    Aberdeen City
    Posts
    20

    Question Deformed wing virus

    I saw two new hatch bees being taken out of the hive this weekend with deformed bee virus. I have treated the hive with MAQs strips, is there anything else I should do? I haven't inspected yet.

  2. #2
    Senior Member Jon's Avatar
    Join Date
    Feb 2010
    Location
    Belfast, N. Ireland
    Posts
    5,122
    Blog Entries
    94

    Default

    That sounds like a reasonable course of action if you have a lot of mites in the hive.
    Have a look in the first decent weather day.

  3. #3
    Senior Member fatshark's Avatar
    Join Date
    Jun 2010
    Location
    Ardnamurchan & Fife
    Posts
    1,693

    Default

    When did you treat with MAQS? If just recently remember that the newly emerging bees will have become infected during early pupation when Varroa enters the cell. Therefore you won't see the benefit until the brood cycle laid during or after MAQS treatment start to emerge.

    Did you treat with oxalic acid? If the winter was warm(ish) where you are it's possible the colony had brood all winter and kept the Varroa going. Uncap some drone brood at the first opportunity … that's where the little blighters will be lurking.

  4. #4
    Administrator gavin's Avatar
    Join Date
    Feb 2010
    Location
    Tayside
    Posts
    4,464
    Blog Entries
    41

    Default

    I don't have experience of MAQS but presume it should be effective. An alternative could have been drone brood trapping which can be effective at this time of year. If your colony has very little drone brood but is building strongly, put a shallow frame at one side of the brood nest then a second a week later at the other side. That puts almost all of the drone brood below the bottom bar of those frames. Cut that off when sealed and Varroa is greatly reduced.

  5. #5
    Junior Member
    Join Date
    Mar 2012
    Location
    Aberdeen City
    Posts
    20

    Default

    Quote Originally Posted by fatshark View Post
    When did you treat with MAQS? If just recently remember that the newly emerging bees will have become infected during early pupation when Varroa enters the cell. Therefore you won't see the benefit until the brood cycle laid during or after MAQS treatment start to emerge.

    Did you treat with oxalic acid? If the winter was warm(ish) where you are it's possible the colony had brood all winter and kept the Varroa going. Uncap some drone brood at the first opportunity … that's where the little blighters will be lurking.
    I put MAQs on after I saw the deformed wind bees, so this weekend. No I didn't treat with oxalic acid but I do think this colony has had brood either all winter or very early on. Is it too early to do an inspection/ drone uncaping?

  6. #6
    Junior Member
    Join Date
    Mar 2012
    Location
    Aberdeen City
    Posts
    20

    Default

    Drone brood trapping is a good idea. I did a count of verroa 2 weeks ago and during a 7 day period I counted a drop of 16 which I didn't think was too bad??

  7. #7
    Administrator gavin's Avatar
    Join Date
    Feb 2010
    Location
    Tayside
    Posts
    4,464
    Blog Entries
    41

    Default

    Quote Originally Posted by scaie View Post
    Drone brood trapping is a good idea. I did a count of verroa 2 weeks ago and during a 7 day period I counted a drop of 16 which I didn't think was too bad??
    Be guided by conditions for inspecting. Generally when it hits 15C is a good time, but you can risk a quick peek a little cooler than that if you're quick.

    For me, 16 mites in a week if the hive was untreated isn't great but there would be no need to rush into anything. If you've used MAQS that should knock them down substantially, and also give you higher counts for a while. If you hadn't treated, the drone brood trapping lets you check the extent of the problem while reducing it at the same time.

    In early spring I sometimes see deformed wing bees and may struggle to see any a few weeks later. Maybe the small amount of new brood hatching early in the season makes them obvious, then they are hard to spot later as the ramping up of brood production means they're swamped by healthy ones. Maybe most of the Varroa causing that early spring damage were on their last legs and the problem fades for a while. Anyway, your problem should be fixed now.

  8. #8
    Junior Member
    Join Date
    Mar 2012
    Location
    Aberdeen City
    Posts
    20

    Default

    Thanks for the advice, I was worried because David Ashton's book was mentioning burning frames, etc. I'm glad you don't think its too serious. I did treat with MAQs strips in September but the cluster was big and I think it had had brood early because it was so mild here.

  9. #9
    Administrator gavin's Avatar
    Join Date
    Feb 2010
    Location
    Tayside
    Posts
    4,464
    Blog Entries
    41

    Default

    Quote Originally Posted by scaie View Post
    Thanks for the advice, I was worried because David Ashton's book was mentioning burning frames, etc. I'm glad you don't think its too serious. I did treat with MAQs strips in September but the cluster was big and I think it had had brood early because it was so mild here.
    Ah. I'd assumed that you were treating with MAQS right now, and that the 16 mites were knocked down rather than natural drop. OK then, keep monitoring, keep an eye on it, and if I was you I would try something like drone brood removal (and have a look in the sacrificed drone brood as an extra check on the Varroa level). That number is higher than you'd really want it to be at this time of year. No need to burnframes though.

  10. #10
    Junior Member
    Join Date
    Mar 2012
    Location
    Aberdeen City
    Posts
    20

    Default

    Yes I am treating with MAQS now but I also did in September. The 16 was a natural drop before I started this treatment

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •