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    RickJ's Avatar
    RickJ Posts: 7,762, Reputation: 864
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    #1

    Apr 11, 2010, 01:20 PM
    Fly control using bags of water with pennies in them.
    I've just learned about this "home remedy" and I can see by googling it that other people use it successfully:

    prevent flies bag pennies - Google Search

    Can any of you tell me why and how this could work?

    Thanks!
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Apr 11, 2010, 01:43 PM

    Probably. My theory. It has nothing to do with water and not much to do with pennies.

    What I can picture is when I was a kid there was a reflective spinning ball on the ceiling of a roller rink.

    I think the bag of water mimics this with no cost. It difracts (bends) the light in random directions this disorienting the fly. An object inside such as a penny or foil just makes it more random and occaisonally more intense.

    I'm almost ready to bet that the roller rink ball would work too.
    Catsmine's Avatar
    Catsmine Posts: 3,826, Reputation: 739
    Pest Control Expert
    		  
    #3

    Apr 11, 2010, 03:28 PM

    The disco ball might work, but it doesn't diffract the light like a bag of water does. It works quite well without the penny. I have seen it keep a house clear of flies hanging on the porch over a barnyard.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #4

    Apr 11, 2010, 08:57 PM

    A mirror ball: Mirror Balls - Buy online here!
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