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  1. #1
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    Default Michael Bush, or any other Bio-Beek

    Michael Bush, or any other Bio-Beek that knows about this; I am curious about a natural pheromone; 2-heptanone, that bees use as an anesthetic to paralyze intruders. I read that after the intruders are paralyzed by this pheromone, the bees remove them from the hive. Are SHB immune to 2-heptanone, or could a duplicate manufactured pheromone be used in some way as an answer to controlling SHB and other pests? Just thinking in text.
    No one famous.

  2. #2
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    Default Re: Michael Bush, or any other Bio-Beek

    Still waiting for thoughts on this.
    No one famous.

  3. #3
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    Default Re: Michael Bush, or any other Bio-Beek

    I have read about this somewhere. Correct me if I'm wrong but it was my understanding the the bees bite the intruders and inject the paralyzing anesthetic. Its not that the SHB are immune. It is the SHB's hard protective shell, almost like a little armored plate to the bees. The bees can not bite the SHB to paralyze them, and the shape of the SHB makes it difficult for the bees to grab them and remove them from the hive.

  4. #4
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    Default Re: Michael Bush, or any other Bio-Beek

    "In foraging workers the secretion also contains a scent, mainly 2-heptinone, which seems to be an alerting pheromone." from The Illustrated Encyclopedia of Beekeeping.

    In reading the whole section on mandibular glands there is no mention of a paralysing pheromone.
    Mark Berninghausen #youmatter

  5. #5
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    Default Re: Michael Bush, or any other Bio-Beek

    The quote box only contains the study title, but the entire study is available for free at the link provided.

    The Bite of the Honeybee: 2-Heptanone Secreted from Honeybee Mandibles during a Bite Acts as a Local Anaesthetic in Insects and Mammals

    http://www.plosone.org/article/info%...l.pone.0047432
    Graham
    USDA Zone 7A Elevation 1400 ft

  6. #6
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    Default Re: Michael Bush, or any other Bio-Beek

    >“2-heptanone,” that bees use as an anesthetic to paralyze intruders.

    It is alarm pheromone. It is used to raise an alarm for a defensive response in the hive. This idea that it can also act as an anesthetic is a new concept.

    > Are SHB immune to 2-heptanone

    According to studies I've seen it ATTRACTS SHB.

    > or could a duplicate manufactured pheromone be used in some way as an answer to controlling SHB and other pests?

    If you want to attract them it would work.
    Michael Bush bushfarms.com/bees.htm "Everything works if you let it." ThePracticalBeekeeper.com 40y 200h 37yTF

  7. #7
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    Default Re: Michael Bush, or any other Bio-Beek

    Where are the studies about 2-heptanone being an attractant? Sounds interesting.
    No one famous.

  8. #8
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    Default Re: Michael Bush, or any other Bio-Beek

    previously posted.
    Julysun elevation 23 feet. 4 Hives, 2 years.

  9. #9
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    Default Re: Michael Bush, or any other Bio-Beek

    When I spot beetles they are often being actively pursued by the bees. On the other hand, I've heard people say the bees just ignore them. What is typical?
    Solomon Parker, Parker Farms, ParkerFarms.biz
    11 Years Treatment-Free, ~25 Colony Baseline

  10. #10
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    Default Re: Michael Bush, or any other Bio-Beek

    Quote Originally Posted by Solomon Parker View Post
    When I spot beetles they are often being actively pursued by the bees. On the other hand, I've heard people say the bees just ignore them. What is typical?
    All my hives actively pursue the little devils. I usually find beetles hearded into corners at the top of the hive inner cover. The devils are released when the hive is opened. I see bees chasing them attacking them. When I squish them bees often grab them for disposal. This phenonom disipates the longer you are in the hive, especially if the bees are in full out alarm mode. I often do not smoke, so that may be a reason I witness this.

  11. #11
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    Default Re: Michael Bush, or any other Bio-Beek

    I suppose to understand what is typical one would have to figure out a good method of observing them without disturbing the hive.
    "People will generally accept facts as truth only if the facts agree with what they already believe."- Andy Rooney

  12. #12
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    Default Re: Michael Bush, or any other Bio-Beek

    Quote Originally Posted by Solomon Parker View Post
    When I spot beetles they are often being actively pursued by the bees. On the other hand, I've heard people say the bees just ignore them. What is typical?
    Saw some yesterday and the day before calmly strolling along a top bar and then down in between. Bees showed no interest.
    Mark Berninghausen #youmatter

  13. #13
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    Default Re: Michael Bush, or any other Bio-Beek

    My bees seem to ignore them.
    Politics is the entertainment branch of industry. -Frank Zappa

  14. #14
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    Default Re: Michael Bush, or any other Bio-Beek

    Adult shb do little, if any, destruction. As long as hives are able to remove the eggs as they are laid then existence of the adults in a hive is a moot point.
    "People will generally accept facts as truth only if the facts agree with what they already believe."- Andy Rooney

  15. #15
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    Default Re: Michael Bush, or any other Bio-Beek

    Good point.
    Mark Berninghausen #youmatter

  16. #16
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    Default Re: Michael Bush, or any other Bio-Beek

    The following have been identified as attractants of the small hive beetle (Torto B 2007 Apidologie 38: 380 and Torto B 2005 Apidologie 36: 523) :

    3-methyl-1-butanol
    2-methyl-1-butanol
    ethyl butyrate
    isopentyl acetate (this is the main bee alarm pheromone)
    3-octanone
    ethyl hexanoate
    2-phenylethanol
    2-heptanone
    octanal
    hexyl acetate
    nonanal
    2-nonanone
    methyl benzoate
    decanal
    and any others identified in the article cited earlier in this thread.

    Many of these compounds are also present in floral nectar.

    Pete
    Pete. New 2013, 7 hives, zone 6a
    To study and not think is a waste. To think and not study is dangerous.

  17. #17
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    Default Re: Michael Bush, or any other Bio-Beek

    Quote Originally Posted by jim lyon View Post
    I suppose to understand what is typical one would have to figure out a good method of observing them without disturbing the hive.

    Exactly. You see the aftermath, the prison-break. Most are corralled. The bees know they are up to know good.

  18. #18
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    Default Re: Michael Bush, or any other Bio-Beek

    Do you folks know the bee feeds the SHB
    How's that for some food for thought

  19. #19
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    Default Re: Michael Bush, or any other Bio-Beek

    No, I didn't. Do you? Or are you pushing my foot?
    Mark Berninghausen #youmatter

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