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  1. #1
    Join Date
    Jun 2007
    Location
    Lynchburg, VA
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    2,530

    Default Shelf Life of Apiguard

    I bought a plastic 3KG tub of Apiguard from Dadant in the fall of 2007 and used in to treat a few hives. It seemed to have worked well. But most of the gel was not used. So, I replaced the lid securely and taped it on with duct tape.

    Then in the fall of 2008 I used the remaining gel to treat about 20 hives. It did not appear to work at all. I did notice that the odor of the gel in 2008 was almost nothing compared to what it was a year earlier. What is the shelf life of Apiguard. It appears that is it much less than a year.
    From each according to his ability, to each according to his contribution. Charles Koch

  2. #2
    Join Date
    May 2006
    Location
    Erie, PA
    Posts
    2,030

    Default

    Hmmm. I have unused sealed trays from 2007. If it expires, I wonder if having it still sealed helps extend the time?
    “The keeping of bees is like the direction of sunbeams.” -Henry David Thoreau

  3. #3

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    The tub I bought in 2008 has a sticker on it that says exp 10/2010. So, I'm guessing that a reasonably well sealed tub should have a shelf life of at least two years.
    Dan www.boogerhillbee.com
    Experience is a hard teacher because she gives the test first, the lesson afterwards

  4. #4
    Join Date
    Oct 2004
    Location
    Lyons, CO
    Posts
    3,031

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    Well the essential oil is very volatile (evaporates easily), maybe some small bit of the lid didn't seal, or the container has a nick or something? I'm sure warm temps would degrade it more quickly too. That's a bummer. You would think good sealing would save it.
    Bees, brews and fun
    in Lyons, CO

  5. #5
    Join Date
    Jun 2007
    Location
    Lynchburg, VA
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    2,530

    Default

    Quote Originally Posted by beemandan View Post
    The tub I bought in 2008 has a sticker on it that says exp 10/2010. So, I'm guessing that a reasonably well sealed tub should have a shelf life of at least two years.
    I do not recall seeing an expiration date on the tub. But, I did seal it very well. It could have been that it was due to expire a few months after I bought it.
    From each according to his ability, to each according to his contribution. Charles Koch

  6. #6
    Join Date
    Dec 2002
    Location
    Rhineland-Palatinate, Germany
    Posts
    829

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    The supplier from Thymomite recommended storing the strips in a cool, dark place. UV light destroyed Thymol. I store it in a freezer and it works, I have no problem.

    If you can smell Thymol when the container is closed it disappears by any small opening in the lid. Maybe the lid is damaged?

    Store the container not on a bright place.

  7. #7
    Join Date
    Jun 2007
    Location
    Lynchburg, VA
    Posts
    2,530

    Default

    Quote Originally Posted by Axtmann View Post
    I store it in a freezer and it works,
    If you can smell Thymol when the container is closed it disappears by any small opening in the lid. Maybe the lid is damaged?

    Store the container not on a bright place.
    Mine was stored inside a dark cabinet in my garage which rarely gets above 85 degrees, 90 at the most. Storing it in a freezer seems to be a good idea. Of course, if it's not sealed well, it may contaminate your food.

    Has anyone stored a partially used container for a year and it's strength was OK afterward?
    From each according to his ability, to each according to his contribution. Charles Koch

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