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  1. #1
    Join Date
    Sep 2007
    Location
    Collin County, TX
    Posts
    134

    Default How to tell age of capped brood?

    Is there an easy way to tell the age of capped worker brood? I want to add some older brood to nucs to boost their population. Seems like I read eye color of the capped brood was an indicator of age. What should I look for?

  2. #2
    Join Date
    May 2007
    Location
    Cambria County, PA US
    Posts
    404

    Default

    Other than maybe the capping turning just a slight slight bit darker, I don't think that you can. At least if you can, I'd be interesting in knowing too, but I'm pretty sure that you can't tell from the outside.

    Would love to hear though if I'm wrong.

  3. #3
    Join Date
    Sep 2007
    Location
    Fayetteville, AR, USA
    Posts
    144

    Default

    This figure shows the eye and cuticle coloration of pupae as it is related to age.
    note the time is time after hatching of the larva, so add 4-5 days for time after the egg is laid.

    http://i132.photobucket.com/albums/q...evelopment.jpg

  4. #4
    Join Date
    Sep 2007
    Location
    Collin County, TX
    Posts
    134

    Default

    Thanks Aszalan. So I can uncap a few brood cells and look for darker pupae with dark brown eyes to find workers that are about to emerge.

  5. #5
    Join Date
    May 2007
    Location
    Cambria County, PA US
    Posts
    404

    Post

    My mistake, didn't read as closely as I should have - I see better what you're doing now. My bad... Do note though that what this really gives you is a range of ages across that frame, not the age of all the brood. Ages across the entire frame will vary pretty widely, as you'll see if you uncap various locations on that frame.

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