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    why do flies avoid a hanging bag with water

    A friend told me that to keep flies out of the house you can hang a plastic zipper bag half full of water in the doorway. And it works! But I want to know why. Anybody know?

    +1  Views: 583 Answers: 3 Posted: 11 years ago

    3 Answers

    Because "Flies are Dirty ,and don`t like bathing .So they take a "rain check !!! You see they prefare a "shower !!! Like it or not !

    I think it messes up their vision  because of light refraction 

    Some insist the flies perceive the clear liquid as the surface of a body of water. Others claim the insect flies away at the sight of its own magnified reflection. But the most popular reasoning that pops up among entomologists and patent-filing entrepreneurs is simple light refraction.



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