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Thread: chalkboard

  1. #1
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    Mar 2013
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    Default chalkboard

    Looks like I got a case of chalkboard in one hive and ive seen it before in the spring with excessive moisture , I've reduced the size of the hive and will see if they can pull though . I'm wondering if there is any way to save the comb in the frames I took off some might only have a dozen or less cells of the white fungus , is there any way to clean it up .

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  3. #2
    Join Date
    Apr 2020
    Location
    Columbia, Maryland, USA
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    178

    Default Re: chalkboard

    Lol, I think you mean Chalkbrood, darn autocorrect amirite? It is generally good practice to remove infected stuff from the hive. They could clean it up, but why take the risk?
    USDA Hardiness Zone 7A, Hobbyist, First Hives in 2017

  4. #3
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    Default Re: chalkboard

    I went through the frames in one box its not to bad maybe only three frames that are questionable

  5. #4
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    Jan 2013
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    Crown Point, NY, USA
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    Default Re: chalkboard

    I'd re-queen with hygienic stock.

  6. #5
    Join Date
    Nov 2011
    Location
    Kawartha lakes, Ontario Canada
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    Default Re: chalkboard

    Agree requeen. I've heard all kinds of stories about cool damp springs etc etc. Funny thing is since I started focusing more on hygienic stock chalkbrood vanished no matter what the weather.

  7. #6
    Join Date
    Feb 2012
    Location
    Colorado Springs, CO United States
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    1,469

    Default Re: chalkboard

    Personally, I would first be more concerned of the why of excessive moisture/chalk brood. One hive that I had that was not positioned correctly, so water was collecting on/in the bottom board & lack of proper ventilation led to this issue. Worry about the frames later, correct the why of this issue, & the bees will take care of the frames?
    Please excuse me, I am now free to go manage & treat ;)
    my ladies the best way I know how.

  8. #7
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    Default Re: chalkboard

    As far as the why I wonder some times if a queen stops laying for some reason and the number of bee's go down and the space there in is to big then moisture becomes a problem . I have seen this before in my beeyard never really bad though normally not a complete lost and only one hive affected and in the spring . If numbers are good going into winter i usually consolidate down to 5 mediums . I have the affected hive in three box's now with a nice clean super of drawn comb right on top of the queen . I checked the hive today and it seems good and active .
    Last edited by laketrout; 04-23-2020 at 04:23 PM.

  9. #8
    Join Date
    Aug 2014
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    England, UK
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    Default Re: chalkboard

    Last year the spring was cold, wet and miserable - most of my hives located on grass had chalkbrood. I decided to take no action. So far this year spring has been warm and dry - with not a single case of chalkbrood.

    So - my plan now is to move hives off the grass wherever possible, or at least to raise them higher off the ground.
    LJ
    A Heretics Guide to Beekeeping http://heretics-guide.atwebpages.com/

  10. #9
    Join Date
    Jun 2008
    Location
    Yuba County, California, USA
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    6,598

    Default Re: chalkboard

    I have to agree with the other's here who've recommended to re-queen with different genetics. I've had chalk in the past, but no more once I got better genetics throughout the yard. Damp conditions won't set it off in a hive with genetics that are resistant to chalk.

  11. #10
    Join Date
    Feb 2001
    Location
    Enfield,Ct.
    Posts
    718

    Default Re: chalkboard

    Years ago a purchased nuc gave me a case of chalk that wouldn't quit.Requeened twice with hygenic stock to no avail.Finally cured with shaking on to foundation ,destroying comb and what little honey they had and feeding syrup.

    Quote: Spores
    "The mummified larva will transition from a white to grey-black colour, which shows the completion of the fungal life cycle and the creation of new spores capable of infecting a new larval host. These spores will remain capable of infecting other bee larvae for up to 15 years. Each Chalkbrood mummy will produce millions of spores which stick to hive components, pollen and adult bees. Spread typically occurs when there is an accumulation of mummies beyond the worker beesí capacity to manage. If worker bees remove mummified larvae from the hive before the spores are produced (before the mummified larvae transitioning to the grey-black colour), the spread of the fungus within the hive will be limited."

    From here:
    https://beeaware.org.au/archive-pest/chalkbrood/

  12. #11
    Join Date
    Dec 2008
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    Menomonee Falls, Wis.
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    Default Re: chalkboard

    I agree with Jack, new comb. There is a possibliity some of the herbicides agrevate chaulkbrood. Spring around here sees alot of Roundup.


    Crazy Roland

  13. #12
    Join Date
    Nov 2011
    Location
    Kawartha lakes, Ontario Canada
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    Default Re: chalkboard

    I am sorry , but truly hygienic stock does not get chalkbrood. I have seen many times unhygienic stock with chalkbrood and in the same yard truly hygienic stock will not show any signs at all of it. you can put a comb full of chalkbrood into a hygienic hive and they will clean it up and relay the frame and never show chalkbrood on the frame again. If you requeened and still had it I'm sorry to say the queens you bought were not hygienic stock.

  14. #13
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    Default Re: chalkboard

    I was able to get a few hygienic queens from are bee club a few years ago when I needed them for splits but all of sudden they seemed to have problems with there queen rearing program and not getting much success and so far they havent had queens available for the last few years and I have just let hives requeen themselves which might be whats going on . I have to admit I was giving up on the idea of special hygienic queens being able to do much good in a small beeyard as the mutt drones pretty much dilute any good traits you get in a few years .

  15. #14
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    Nov 2011
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    Kawartha lakes, Ontario Canada
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    Default Re: chalkboard

    they need to be tested every year 2 times a year to be sure the genes are being controlled in order to maintain an actual breeding program. We will start testing next week and then again end of May and probably again in July/August. then when you add the time for VSH testing in too you do need to be dedicated in order for good results. For just open mated production queens the Olivarez Italians and Saskatraz all have very good results for hygiene.

  16. #15
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    Aug 2014
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    Default Re: chalkboard

    There's a world of difference between queens which produce brood which are resistant to chalkbrood, and queens which are hygienic. Hygienic queens are not a cure for the problem - all their colonies will do is remove the evidence so that you no longer consider that you have a problem - but the chalkbrood persists, only now out of sight.

    As for re-queening - re-queen with what ? How anyone can distinguish between a chalkbrood resistant strain and one which is hygienic is beyond me - which is why I don't bother re-queening.

    Sterilising the hive and frames, and supplying new wax will also probably not solve the problem long-term, as any bees visiting neighbouring hives will undoubtedly bring chalkbrood spores back with them.
    LJ
    A Heretics Guide to Beekeeping http://heretics-guide.atwebpages.com/

  17. #16
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    Nov 2011
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    Kawartha lakes, Ontario Canada
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    Default Re: chalkboard

    That's where you're wrong it is not that they are resistant but instead able to detect an issue and remove brood before it reaches the point of becoming contagious. This is the same with AFB they are able to clean up and eliminate the issue by not allowing it to spread though the brood by dealing with it before it becomes spore forming. You can read many of the studies from people like Marla Spivak if you'd like more info.

  18. #17
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    Jun 2012
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    Suffolk Co, NY, USA
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    Default Re: chalkboard

    Anyone ever have overly hygienic bees? The non, the hygienic and the overly so.

  19. #18
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    Default Re: chalkboard

    AJ Are you freezing brood and counting the brood that has been removed to test for hygienic traits or are there other ways

  20. #19
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    Default Re: chalkboard

    Quote Originally Posted by laketrout View Post
    AJ Are you freezing brood and counting the brood that has been removed to test for hygienic traits or are there other ways
    There are other ways , but yes I am using the liquid nitrogen freeze kill method. It is the most reliable.

  21. #20
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    Default Re: chalkboard

    Is there anything I could spray the comb with that would kill the spores to some degree before placing them back on the hive

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