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  1. #1
    Join Date
    Apr 2007
    Location
    Northern Virginia
    Posts
    758

    Default Chalk brood questions

    Got a nuc and come to find out that it has chalk brood. Took about 1/8 - 1/4 of a cup of mummies off the bottom board, a week after it was made up. The nuc came from "over the mountain" where it has been a cooler and somewhat wet spring. Frames were pulled from a hive requeened this past Fall.Having never had this before, and understanding that it can clear up by itself (although I wish we were not going to have rain all week), I have a few questions:

    Can chalkbrood spread within the apiary if you do not move frames around?
    If it clears up within a few weeks, would you still requeen?
    any other advice on dealing with chalkbrood?

    Thanks
    karla

  2. #2
    Join Date
    Dec 2002
    Location
    Rhineland-Palatinate, Germany
    Posts
    829

    Default

    Chalk brood is the only bee disease that can infect humans when inhaling the spores, inflammation of the lung, pneumonia.

    Chalk brood fungus can spread very easy when moving frames, beekeeper can bring spores in other hives with gloves, clothes or hive tools.
    No treatment available, bring hive to a dry and sunny place and re queen.

  3. #3
    Join Date
    Dec 2006
    Location
    St. Albans, Vermont
    Posts
    5,390

    Default

    Quote Originally Posted by winevines View Post
    Can chalkbrood spread within the apiary if you do not move frames around?
    If it clears up within a few weeks, would you still requeen?
    any other advice on dealing with chalkbrood?

    Thanks
    I dealt with Chalk for years, before raising my own stock. Still see some, but not much. It doesn't seem to spread through the apiary, but be isolated to a few colonies.

    I think two different traits are at work when bees don't have a Chalkbrood problem.

    Hygienic behavior, and resistance. Hygienic bees will clean up Chalkbrood, while resistant bees will never contract it.

    If your bees have a bad case of Chalkbrood, they've already told you they have a fault. I would requeen them even if the symptoms cleared up for a time.

  4. #4
    Join Date
    Feb 2005
    Location
    High River, Alberta
    Posts
    158

    Default

    I found that honey bee health cleared up my chalk brood problem. This is not proven, but since I started using honey bee healthy I definatly saw a major decine in the number of chalk brood infested hives

  5. #5
    Join Date
    Apr 2008
    Location
    Madison County, Alabama
    Posts
    487

    Default Hives with Chalkbrood (propolis is black!!!)

    (Winevines and I are experiencing chalkbrood, together, in a jointly managed hive)

    Propolis is black, like tar.

    I assume this is mold??? Boy this stuff is discouraging!
    "...the most populous colonies ...are provided by queens ...in the year following their birth." Brother Adam

  6. #6
    Join Date
    Apr 2000
    Location
    Birmingham, West Midlands, UK
    Posts
    751

    Default

    You have a recently made up nuc with lots of chalk. Could it be that the bees had more brood than they could handle? I once made a split, and gave it too much brood. It had a whole frame of capped brood which never hatched. Every cell had a chalk mummy under the capping; I've never seen the like. See how much you find when the colony has established itself.
    RSBrenchley@aol.com
    Birmingham UK

  7. #7
    Join Date
    Apr 2007
    Location
    Northern Virginia
    Posts
    758

    Default

    Quote Originally Posted by Robert Brenchley View Post
    You have a recently made up nuc with lots of chalk. Could it be that the bees had more brood than they could handle? I once made a split, and gave it too much brood. It had a whole frame of capped brood which never hatched. Every cell had a chalk mummy under the capping; .
    Very interesting. That is exactly to be what appeared to have happened. We actually bought 10 of these nucs, and 4 had this problem.
    It cleared up quickly (within 3 weeks).
    The nuc seller also thought it was from the brood getting chilled as he could find no chalk brood in his own apiary where the nucs were made from.
    It has been cool and wet here this Spring.
    karla

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