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  1. #1
    Join Date
    Apr 2012
    Location
    Baytown, TX., USA.
    Posts
    651

    Angry Bottom Board Problems

    I have three new hives, they are about one month old. I have all three on screened bottom boards with plastic insert. Well I read many comments from beekeepers and came to the conclusion that the plastic inserts needed to stay in place to prevent to much ventilation. Wrong. Today I pulled one of the sheets and found Wax Moth larva crawling around on them. All three. About 20 larva on each board. Very few mites. Two small beetles, which I assume are SHB. The bees drop much pollen and wax onto the sheets, they cannot get at the sheet to clean it, the Wax Moths find it and here we go. For me no more closed wire mesh bottom boards. If it proves to be to much ventilation then I will replace with solid bottom boards. As a newbie I ask your guidance on this/these problems. Thanks.
    Another point I have Bacillus thuringlensis subspecies kurstaki 15 % Can I spray this on an active hive? Or should it be only for spare frames and boxes? At the proper concentration of course. Is there a different subspecies for bees?
    Thanks x2

  2. #2
    Join Date
    Sep 2009
    Location
    Myrtle Beach, SC, USA
    Posts
    876

    Default Re: Bottom Board Problems

    Are you sure it is wax moth larva and not shb larva?
    https://www.facebook.com/stevesbees99
    Please visit my page, Thanks

  3. #3
    Join Date
    Nov 2006
    Location
    central mn
    Posts
    276

    Default Re: Bottom Board Problems

    Bacillus thuringlensis subspecies kurstaki 15 %

    NO<<NO<<NO<<NNOO wrong stuff what you want starts with an ""A "" >>> Bt Aizawai Powder<<< talk to sundance in "" for sale """

  4. #4
    Join Date
    Apr 2012
    Location
    Baytown, TX., USA.
    Posts
    651

    Default Re: Bottom Board Problems

    sfisher
    Nope, will look for some pictures.

    the kid;
    Thanks will look for the "A"

  5. #5
    Join Date
    May 2009
    Location
    Garland County, AR
    Posts
    1,076

    Default Re: Bottom Board Problems

    I try to leave my hives open for ventilation, even in the winter. Here in Arkansas it's not been a problem, but I do put up bales of hay about 2' out in the winter for a wind break. I really like the bottom board with the oil trays - they catch and kill, no questions asked. I will leave them on for 3 days at a time and sometimes shorter if really hot. Sometimes longer if showing shb or mite drop.
    Zone 7b ~ Central Arkansas
    8fr medium equipment

  6. #6
    Join Date
    May 2012
    Location
    Starkville, MS
    Posts
    300

    Default Re: Bottom Board Problems

    I use the screened bottom board with shb trap from Rossman. They are wonderful, when I work my hives, the shb run from the light and wind up in the trap. Best money I have ever invested in equipment.

  7. #7
    Join Date
    Nov 2004
    Location
    Brown County, IN
    Posts
    2,034

    Default Re: Bottom Board Problems

    I believe most of us that use screened bottom boards keep them open all the time. A few in the far north may close them during winter, but even here in Indiana, most leave them open year 'round.

  8. #8
    Join Date
    Aug 2008
    Location
    Seneca, sc
    Posts
    830

    Default Re: Bottom Board Problems

    Leave them open. Do the larva look like this, if they do they are SHB.

    http://www.beesource.com/forums/show...69292-New-Nucs

  9. #9
    Join Date
    May 2011
    Location
    Livermore, CA
    Posts
    1,404

    Default Re: Bottom Board Problems

    I leave mine open year round as well, no problems with "over ventilation" here, and I also run ventilated inner covers.
    Coyote Creek Bees

  10. #10
    Join Date
    May 2012
    Location
    Cheyenne, Wyoming, USA
    Posts
    1,693

    Default Re: Bottom Board Problems

    Keep the slides out unless you are doing a mite count!

  11. #11
    Join Date
    Jul 2011
    Location
    Perry, Florida, USA
    Posts
    226

    Default Re: Bottom Board Problems

    I am of the opinion that a solid bottom of any kind is an invitation to SHB, wax moths, and reinfestation of discarded mites. Screens mean that the house bees dont have to work taking out the trash as much and can spend more time working the comb and chasing pests.

    psisk

  12. #12
    Join Date
    Sep 2009
    Location
    Myrtle Beach, SC, USA
    Posts
    876

    Default Re: Bottom Board Problems

    I use screen bottom boards and leave them open year round. The only problem I see leaving them that way is that, the larva need to make it to the ground below the hive to pupate. And the screen bottom board makes it real easy for them to just fall through to the ground.
    https://www.facebook.com/stevesbees99
    Please visit my page, Thanks

  13. #13
    Join Date
    Apr 2012
    Location
    Baytown, TX., USA.
    Posts
    651

    Default Re: Bottom Board Problems

    All of you have VERY helpful, THANKS

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