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Thread: Afb

  1. #1
    Join Date
    Mar 2009
    Location
    Zimmerman, MN
    Posts
    18

    Default Afb

    I suspect one of my colonies has AFB. The larvae are dieing and show all of the symptoms that I have been researching. I do see new bees chewing themselves out, so I'm assuming it just happened.

    I have another colony right next to it...is it more likely to transfer to them? Also, I'm assuming I just have to get rid of the whole colony...is that correct?

    I'm not sure how they got it. I had a hive top feeder and there was mold on the telescoping cover and also the syrup smelled like it was fermenting. Could this be a reason?

    Any advice would be great. Thanks.

  2. #2
    Join Date
    May 2008
    Location
    Fresno California USA
    Posts
    2,479

    Default Symptoms

    What symptoms do you see?

  3. #3
    Join Date
    Mar 2009
    Location
    Zimmerman, MN
    Posts
    18

    Default symptoms

    I see dead larva, but I also see what looks like healthy larvae. The dead larvae are pooled at the bottom of the cell. Some of them are gray and some are white. Some of them are mushy, some of them are the consistancy of a smooshed larva. A couple of the cells are liquidy when I poke a stick into it.

  4. #4
    Join Date
    May 2008
    Location
    Fresno California USA
    Posts
    2,479

    Default

    Rotten larva from AFB turns dark brown, like brown gravy.

  5. #5
    Join Date
    Sep 2004
    Location
    Devils Lake, North Dakota
    Posts
    9,123

    Default

    Stick a toothpick into one of the affected cells and
    slowly draw it out. AFB will make for a rope like, stringy,
    mess.

    See pictures of "Ropiness Test"

    http://www.spc.int/rahs/Manual/image..._foulbrood.htm

    Info:

    http://www.spc.int/rahs/Manual/BEES/AMFOULBROODE.HTM

  6. #6
    Join Date
    Sep 2007
    Location
    Fayetteville, AR, USA
    Posts
    144

    Default

    you can also use one of the AFB diagnostic test kits for confirmation

    https://www.dadant.com/catalog/produ...roducts_id=716

  7. #7
    Join Date
    Dec 2005
    Location
    Brasher Falls, NY, USA
    Posts
    27,203

    Default

    Quote Originally Posted by mandalynn View Post
    I see dead larva, but I also see what looks like healthy larvae. The dead larvae are pooled at the bottom of the cell. Some of them are gray and some are white. Some of them are mushy, some of them are the consistancy of a smooshed larva. A couple of the cells are liquidy when I poke a stick into it.
    Looks like sacbrood to me.
    Mark Berninghausen #youmatter

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