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Type: Posts; User: BernhardHeuvel

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  1. Re: Anyone doing OAV treatments from top of hive?

    See the video. The device has a small fan that circulates the vapor throughout the hive. It ensures that every single bee in that hive is covered in oxalic acid crystals making the application very...
  2. Re: Anyone doing OAV treatments from top of hive?

    No – the 6 minutes per hive is the electrical version of the Oxamat. The butane gas version needs only 3 minutes. I do 60-100 hives a day, checking, feeding and treating in one go. I pull the device...
  3. Re: Anyone doing OAV treatments from top of hive?

    Yes, that is right. The more hives you use it on, the more oxalic acid builds up. But it is rather loose and can be wiped off.

    The producer of that device is Erich Alfranseder. See:...
  4. Re: Anyone doing OAV treatments from top of hive?

    Developed and sold commercially. Semi-commercially that is. No, not me.


    http://www.youtube.com/watch?v=2mx34L9LxYQ
    https://www.youtube.com/watch?v=2mx34L9LxYQ

    I love it. I work four pallets...
  5. Re: Anyone doing OAV treatments from top of hive?

    Testing a new oxalic acid sublimation device...works from the top.


    http://www.youtube.com/watch?v=nT3lp1Y0Rgg
    https://www.youtube.com/watch?v=nT3lp1Y0Rgg

    Works with butane gas, oxalic acid...
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