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  1. #1
    Join Date
    Jul 2009
    Location
    westchester, new york, USA
    Posts
    114

    Default screened bottom on TBH

    I'm in the process of building a TBH and I'm at the point where I need to decided whether to put in a screened bottom. I'm just curious what the general consensus is.

  2. #2
    Join Date
    Jun 2007
    Location
    Slovenia
    Posts
    325

    Default Re: screened bottom on TBH

    There is really no general consensus about this

    I am using all closed bottoms on my TBHs.
    Sig

  3. #3
    Join Date
    Jul 2009
    Location
    westchester, new york, USA
    Posts
    114

    Default Re: screened bottom on TBH

    Well I guess, being new to TBH, what are the positives and negatives to each?

  4. #4
    Join Date
    May 2009
    Location
    Manhattan,Montana,USA
    Posts
    358

    Default Re: screened bottom on TBH

    i have no experience with top bar hives but if they anchor the comb from the top bar to that screen it could be kind of a mess? just a thought.

  5. #5
    Join Date
    May 2009
    Location
    Monroeville Pa
    Posts
    188

    Default Re: screened bottom on TBH

    I started my first hive this year, a top bar hive from www.customwoodkits.com. No screened bottom. Healthy beautiful hive.
    Have you looked at Michael Bushes website?

  6. #6
    Join Date
    Sep 2009
    Location
    St. Mary's County, Maryland
    Posts
    28

    Default Re: screened bottom on TBH

    I'm not an expert either but I would vote for using screen for two reasons:

    1.) Varroa Destructor (mites)
    2.) Hive Ventilation (don't underestimate it's importance)

    Check out the screen bottom pictures in this TBH how-to:
    http://www.lulu.com/items/volume_54/...p_bar_hive.pdf
    I'm not sure why he is using a convex curve with the screen up into the hive. I may email him and ask. I'm curious about that.

    And if you're worried about the hive being too cold over the winter because of the screen (like I was) consider this counterintuitive fact; A hive will consume more honey stores when the weather is warmer than they will in the cold! Yeah, I know, that one surprised me too.

  7. #7
    Join Date
    Aug 2002
    Location
    Nehawka, Nebraska USA
    Posts
    46,142

    Default Re: screened bottom on TBH

    http://www.bushfarms.com/beestopbarhives.htm#SBB

    I put some on some of them and didn't on others. Other than needing to close it to control ventilation (too much is not a good thing) I don't think it matters. I don't think the impact on Varroa is noticable.
    Michael Bush bushfarms.com/bees.htm "Everything works if you let it." ThePracticalBeekeeper.com 40y 200h 37yTF

  8. #8
    Join Date
    Jul 2009
    Location
    westchester, new york, USA
    Posts
    114

    Default Re: screened bottom on TBH

    Thanks for the responses. And Michael Bush, thanks for the great website, as a newbie I find it an extremely valuable resource. I guess since there is no right or wrong on this one, it just gives me the opportunity to build a second TBH and try one with a screen and one without.

  9. #9
    Join Date
    Jun 2008
    Location
    Portland, OR, USA
    Posts
    641

    Default Re: screened bottom on TBH

    I have 9 Horizontal Top Bar Hives and I don't use screened bottoms on any of them. They are going strong.

    Matt

  10. #10
    Join Date
    Jul 2008
    Location
    Belfield, North Dakota, USA
    Posts
    610

    Default Re: screened bottom on TBH

    I put a screened bottom on my TBH, but then I also hinged a solid bottom underneath it, so that I can open or close off the bottom as needed.

  11. #11
    Join Date
    Jan 2009
    Location
    Minerva, Ohio, USA
    Posts
    69

    Default Re: screened bottom on TBH

    Quote Originally Posted by Orion86 View Post
    I'm not sure why he is using a convex curve with the screen up into the hive. I may email him and ask. I'm curious about that.
    This question was answered by Gareth on the Natural Beekeeping Network:

    When I build according to Phil's plans, the bottom of the sides slopes upwards and inwards because of the the angles involved. Fixing plastic mesh to this automatically tends to create an upward curve, just as in the photo on the plans.
    I miter the edges of my side boards parallel to the ground in order to add a hinged bottom board and do not get this curving of the mesh.

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