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  1. #1
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    Apr 2011
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    Default Diatomaceous earth for beetle control

    I have some DE and was wondering how to apply it. Is it dangerous to the bees, or just the beetles? Does it need to be applied in such a way that the bees absolutely can't come in contact with it?

  2. #2
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    May 2012
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    Haslet, Tx
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    Default Re: Diatomaceous earth for beetle control

    DE is used as a pesticide because of its sharp edges. if you look at it in a microscope it is tiny sharp shapes that get between the plates of exoskeleton and mechanically eat a hole in it and then the insect dies from dehydration. It will kill your bees and your mites and if it dosen't kill the bees it will severly stunt their growth.

  3. #3
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    Feb 2011
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    Auburntown, TN USA
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    Default Re: Diatomaceous earth for beetle control

    DE is sometimes used in shb traps as a substitute for the oil normally used. It will kill beetles...and bees.

  4. #4
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    Default Re: Diatomaceous earth for beetle control

    Sounds like grease and honey in a thin CD box is the way to go. Plus boric acid, maybe.

  5. #5
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    May 2012
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    Default Re: Diatomaceous earth for beetle control

    Strong hives are the best treatment for SHB

  6. #6
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    Default Re: Diatomaceous earth for beetle control

    If my hives were any stronger they'd be at the Olympics. I just want to keep it that way.

  7. #7
    Join Date
    Jan 2010
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    Alachua County, FL, USA
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    Default Re: Diatomaceous earth for beetle control

    If you think putting something deadly in a beetle trap will prevent contact and killing your bees, you missed the big die off in a Florida commercial apiary. Bless his heart. He used to brag about putting it in the hives at the bee meeting. Word of caution, years of experience and number of hives does not prevent stupidity.
    americasbeekeeper.com
    beekeeper@americasbeekeeper.com

  8. #8
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    Default Re: Diatomaceous earth for beetle control

    Quote Originally Posted by AmericasBeekeeper View Post
    He used to brag about putting it in the hives....
    What was "it"?

  9. #9
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    Jan 2010
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    Alachua County, FL, USA
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    Default Re: Diatomaceous earth for beetle control

    Fipronil, roach bait
    americasbeekeeper.com
    beekeeper@americasbeekeeper.com

  10. #10
    Join Date
    May 2012
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    Moyock, NC, USA
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    Default Re: Diatomaceous earth for beetle control

    I would not treat the hive with anything toxic to the bees unless there are no other options. If your bees are strong now, take note of the beetles and try to form a allowable "beetle number" for your hive.
    Would you say it is fairly constant?
    When you perceive that number increasing, then consider treating.

  11. #11
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    Middlesex, MA USA
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    Default Re: Diatomaceous earth for beetle control

    Sounds like a good approach. I've been less attentive to the hives as a whole lately due to family medical issues taking a lot of time. I hope that will wane oon.

  12. #12
    Join Date
    Jun 2012
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    Houston, Texas, USA
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    Default Re: Diatomaceous earth for beetle control

    Think of it as crawling on broken glass. Not toxic like poisons, but more of a physical threat. I put it more heavily around the sides and back, but lighter in the landing path of the bees. I just started putting it under the hive thinking that the SHB larvae falling out of my screened bottom would be killed. I also have some nematodes being delivered tomorrow, 7/26, and they are suppose to take care of them in the ground during larvae/pupae stage. News at 11 on the war update.....
    Last edited by mmmooretx; 07-25-2012 at 12:35 PM. Reason: typo
    Mike
    N5RWH - 9a

  13. #13
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    Default Re: Diatomaceous earth for beetle control

    Wouldn't the DE do a number on the nematodes too? It's used to kill intestinal parasites in chickens.

  14. #14
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    Jun 2012
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    Default Re: Diatomaceous earth for beetle control

    My thought on that is the DE in on the surface and the nematodes are below the surface, and they may be small enough so they are not affected by the DE, hopefully.
    Mike
    N5RWH - 9a

  15. #15
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    Default Re: Diatomaceous earth for beetle control

    I don't think their size would protect them - diatoms are pretty small. But maybe the physical separation would be effective - I gather the beetle larvae burrow down?

  16. #16
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    Sacramento, CA, USA
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    Default Re: Diatomaceous earth for beetle control

    It's only harms them if they come in contact with it. It gets into their trachea and shreds it.

  17. #17
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    Default Re: Diatomaceous earth for beetle control

    [QUOTE=KelpticFest;830873 I gather the beetle larvae burrow down?[/QUOTE]

    That is my understanding.
    Mike
    N5RWH - 9a

  18. #18
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    Feb 2004
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    Fredericksburg, Va
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    Default Re: Diatomaceous earth for beetle control

    What nematodes have been shown to be effective against SHB larva/pupae?
    Bee all you can Bee!
    http://www.hamiltonapiary.net

  19. #19
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    Houston, Texas, USA
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    Default Re: Diatomaceous earth for beetle control

    Quote Originally Posted by JohnBeeMan View Post
    What nematodes have been shown to be effective against SHB larva/pupae?
    I am hoping the following one does the job, it sounded like the closest one to take care of the larvae/grubs in the soil. I am also going to put them on my raised bed gardens to take care of other grubs. No evidence, but I am giving a shot. If successful I will report it.

    http://www.arbico-organics.com/produ...atodes-Feltiae
    Mike
    N5RWH - 9a

  20. #20
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    May 2012
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    Moyock, NC, USA
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    Default Re: Diatomaceous earth for beetle control

    I see that we need to kill the beetles for now, but ultimately we need to have the conditions in the hive and with the bees themselves correct as to not be affected by a pest.

    If you get a cut in the same place every day, would you put on a band aid repeatedly or stop getting cut to start with.?
    Personally I think we should be asking why are the bees infected? There are a multitude of factors that play into that, and create either the good or bad environment for pests.
    that's my two cents ...do I get any change?

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