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Type: Posts; User: BernhardHeuvel

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  1. Re: There has to be a better way (moving hives)

    One person, hand truck and a ramp up the trailer or tailgate. Spray the entrance with water, bees walk in, block the entrance with rigid foam material. You need a deep and open mesh floor for...
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    Re: Jack Frost has Arrived :(

    In the news they say, it most probable that this winter we'll face another El Niño.

    The last winter there was a El Niño (in the Pacific, but causing weather turbolences elsewhere, including...
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    Re: Considering switching to Oxalic Acid

    And this after the treatment:

    http://www.youtube.com/watch?v=MK9cGHLj-2M

    The bees didn't go down with temperature after the treatment. For the rest of the winter. It seems you really wake them...
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    Re: Considering switching to Oxalic Acid

    Yes, that is the case. A friend of mine installed numerous temperature sensors throughout the hive. This before winter treatment:

    http://www.youtube.com/watch?v=c3xYRDXnVIo
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    Re: Considering switching to Oxalic Acid

    Yes, made a mistake when calculating - because 1 ml is not 1.22 mg but 1.22 g. So the 0.02 g found after vaporization (I learned it is sublimation not vaporization) is similiar to 1.6 ml 100 % formic...
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    Re: Considering switching to Oxalic Acid

    I just stumbled upon this: vaporized oxalic acid disintegrates into water, carbon monoxid and dioxid. But in between there is a step where oxalic acid disaggregates into formic acid and carbon...
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    Re: Warre swarmed twice now what?

    English translations.

    12th edition:
    http://www.users.callnetuk.com/~heaf/beekeeping_for_all.pdf

    5th edition: (in French) => lots of pictures of Warré's operation. ...
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    Re: Warre swarmed twice now what?

    Yeah, in the 5th edition of his book, the early edition, he has used frames side by side to fixed combs. Later in his 12th edition of his book he leaves out frames more or less completely in favour...
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    Re: Warre swarmed twice now what?

    Sure you have read the book? There is one chapter on walk-away-beekeeping, yes. But that is a method for special situations. (Distant apiaries. Long distance.) The rest of the (original) book shows...
  10. Re: Newbees, Mediums and AFB -- a cautionary tale

    At times, only at times. Wish that would be the case in other topics, too, but it seems beekeepers all over the World are of the same sort. :)
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    Re: Warre swarmed twice now what?

    He he, it is a very popular hive in Europe. Unlike the US. http://www.icko-apiculture.com/en/ruche/ruche-rucheco/hive-dadant-12-frames/rucheco-dadant-12-cadres-droit-garnie-cire.html

    Funny enough...
  12. Re: Newbees, Mediums and AFB -- a cautionary tale

    That was a joke, was it?

    Nothing of the above described by me is enforced by law or the goverment. The opposite. It is organized by the beekeepers and run by them. If someone doesn't want to take...
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    Re: Warre swarmed twice now what?

    The Warré hive is a great tool if you know how to use it properly. (As is with any other tool, like the queen excluder...)

    Most things I read on beesource about the Warré hive is not appropiate....
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    Re: Honey production math

    You may want to read all the work done by C.L. Farrar. For a start: http://www.beesource.com/resources/usda/productive-management-of-honey-bee-colonies/
  15. Re: Newbees, Mediums and AFB -- a cautionary tale

    In Germany the burning of AFB infected hives was standard until about ten years ago, too. With bees and all. Nowadays the standard is to shake down hives, combine two to three colonies (just the...
  16. Re: Collecting cool apiary photos - care to add?

    Ask Michael (Bush), he has a GoPro video camera and doesn't use it. He maybe send you his camera. :thumbsup:
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    Re: Wondering about TF and Colony Size

    Martin Dettli from Switzerland found in his experiments/survival tests, that smallness is a key strategy of a bee colony to survive varroa. See his report (in German though):...
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    Re: Amount of smoke??

    Well done! This is the way to do it.



    Yes, too much smoke confuses the bees and they get disoriented. In no time they really get p*zzed off and will attack you. Use smoke carefully. Usually you...
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    Re: Source of Late Fall Varroa Load

    Yes, when...and if... and so. I know of only one treatment that eradicates 100 % of all mites and that is either fire or sulphur. Problem with that, the bees don't survive it either. With all those...
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    Re: Oxalic Acid Vaporising Bulk Hives

    There is a big movement in France with beekeepers using copper wire at the hive entrances to get the bees in contact with copper and thus decrease mite numbers. But not much of those believes spilled...
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    Re: Source of Late Fall Varroa Load

    In the past I discussed this topic on the phone with Mr. Rosenkranz. There are some flaws in the methods and setup of the experiments so I had and have my doubts. Other scientists in Germany start...
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    Re: Oxalic Acid Vaporising Bulk Hives

    My chemical knowledge is only limited but something like cupric oxalate (C2CuO4) or copper itself may find it's way into the hive. It is better to use stainless steel parts to avoid unwanted chemical...
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    Re: Oxalic Acid Vaporising Bulk Hives

    One or two hints: temperature is key. According to experiments made here if the temperature rises above 140°C/284°F the oxalic acid breaks down and is noneffective. So oxalic acid has to be vaporized...
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    Re: Varroa Mite Control Methods

    I do find thrown out brood sometimes in front of the hives the day after oxalic acid dribbling in summer. Not always. Even with repeated treatments the losses are low or non-existent. Formic acid is...
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    Re: Varroa Mite Control Methods

    Yeah, oxalic acid does no harm to brood...
    ...
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