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  1. #1
    Join Date
    May 2011
    Location
    Amador County, California, USA
    Posts
    138

    Default Alcohol wash vs. Sugar shake

    Which do you prefer for sampling? I would prefer the sugar shake method as it doesn't kill the bees but I wonder if the alcohol wash is more accurate?

    Sugar shake: http://www.youtube.com/watch?v=fDAErFAIneY

    Alcohol wash: http://www.youtube.com/watch?v=71F9augcs_c

  2. #2
    Join Date
    May 2012
    Location
    Sacramento, CA, USA
    Posts
    2,925

    Default Re: Alcohol wash vs. Sugar shake

    I bet a C02 drop would be just as effective and wouldn't kill the bees either.

  3. #3
    Join Date
    Jan 2010
    Location
    Alachua County, FL, USA
    Posts
    6,997

    Default Re: Alcohol wash vs. Sugar shake

    alcohol is more accurate but there are thresholds for each method
    americasbeekeeper.com
    beekeeper@americasbeekeeper.com

  4. #4
    Join Date
    Dec 2005
    Location
    Brasher Falls, NY, USA
    Posts
    27,640

    Default Re: Alcohol wash vs. Sugar shake

    Quote Originally Posted by JRG13 View Post
    I bet a C02 drop would be just as effective and wouldn't kill the bees either.
    Never heard of that. How does one do that JRG?

    I'm not so sure that one method is necessarily better than another, but that it's a matter of consistently sampling an accurate same sample size. Then drawing consistent conclusions from what the results indicate.

    Any sampling technique is an indicator, not necessarily a direct correlation of X number of mites in the sample equaling X number of mites in the hive. No one I have ever asked has ever said that 1 mite in a 300 bee sample correlates to 100 mites in a 30,000 bee colony.

    How many people ever take more than one sample from the same hive to compare results? It might be interesting to do multiple samples from the same hive at the same time or on consecutive days, to see what that would show.
    Mark Berninghausen To combat Ebola, please consider supporting http://www.doctorswithoutborders.org


  5. #5
    Join Date
    Aug 2002
    Location
    Nehawka, Nebraska USA
    Posts
    46,341

    Default Re: Alcohol wash vs. Sugar shake

    >Which do you prefer for sampling?

    Sugar, if I have to... natural drop is even easier with a tray under an SBB...

    > I would prefer the sugar shake method as it doesn't kill the bees but I wonder if the alcohol wash is more accurate?

    Yes, alcohol wash is more accurate. IMO not enough to be worth killing bees over.
    Michael Bush bushfarms.com/bees.htm "Everything works if you let it." ThePracticalBeekeeper.com 40y 200h 37yTF

  6. #6
    Join Date
    Nov 2009
    Location
    Manning, SC
    Posts
    2,249

    Default Re: Alcohol wash vs. Sugar shake

    Quote Originally Posted by Michael Bush View Post
    >Which do you prefer for sampling? natural drop is even easier with a tray under an SBB...
    Easier? Very true, but in my experience, not accurate. I've found that the mites that drop (w/o any treatments) are the ones that were dead, dying or just "fell off." Take that same hive and do sugar shake or alcohol wash using bees in the brood nest and you'll get a different (and IMO) more accurate result.
    http://OxaVap.com Your source for the Varrox OA Vaporizer,
    "One of the highest ranked" by R. Oliver

  7. #7
    Join Date
    Aug 2002
    Location
    Nehawka, Nebraska USA
    Posts
    46,341

    Default Re: Alcohol wash vs. Sugar shake

    When I have 0 mites on the tray I don't see much reason to kill some bees so I can see 0 mites in an alcohol wash... it's just a waste of bees. It's all a ballpark figure no matter what method you use.
    Michael Bush bushfarms.com/bees.htm "Everything works if you let it." ThePracticalBeekeeper.com 40y 200h 37yTF

  8. #8
    Join Date
    Nov 2009
    Location
    Manning, SC
    Posts
    2,249

    Default Re: Alcohol wash vs. Sugar shake

    Quote Originally Posted by Michael Bush View Post
    When I have 0 mites on the tray I don't see much reason to kill some bees so I can see 0 mites in an alcohol wash... it's just a waste of bees. It's all a ballpark figure no matter what method you use.
    Very true, but I was referring to was the counting the mites on a tray as a viable method of determining mites in a hive. It's all ballpark as you say, but considering most of the mites are in the brood nest, sampling the brood nest IMO provides a better analysis of what's in the hive than looking at a tray. But 0 mites in a tray....I wouldn't bother sampling the brood nest at all.
    http://OxaVap.com Your source for the Varrox OA Vaporizer,
    "One of the highest ranked" by R. Oliver

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