A cousin of mine send this to me.Check it out.

>
> ZIP LOCK BAG -
>
> Good tip!
> We went with friends to a restaurant on Sunday for lunch and sat in
> the patio section beside the store.
>
> We happened to notice zip lock baggies pinned to a post and a wall.
> The bags were half filled with water,
>
> each contained 4 pennies, and they were zipped shut. Naturally we
> were curious!
>
> The owner told us that these baggies kept the flies away! So
> naturally we were even more curious! We
>
> actually watched some flies come in the open window, stand around on
> the window sill, and then fly out again.
>
> And there were no flies in the eating area!
>
> This morning I checked this out on Google. Below are comments on
> this fly control idea. I'm now a believer!
>
> Zip-lock water bags
>
> #1 Says:
> I tried the zip lock bag and pennies this weekend.. I have a horse
> trailer. The flies were bad while I was camping.
>
> I put the baggies with pennies above the door of the LQ. NOT ONE FLY
> came in the trailer. The horse trailer part
>
> had many. Not sure why it works but it does!
>
> #2 Says:
> Fill a zip lock bag with water and 5 or 6 pennies and hang it in the
> problem area. In my case it was a particular
>
> window in my home. It had a slight passage way for insects. Every
> since I have done that, it has kept flies and
>
> wasps away.
>
> Some say that wasps and flies mistake the bag or some other insect
> nest and are threatened.
>
> #3 Says:
> I swear by the plastic bag of water trick. I have them on porch and
> basement. We saw these in Northeast Mo. at an
>
> Amish grocery store & have used them since. They say it works
> because a fly sees a reflection & won't come around.
>
> #4 Says:
> Regarding the science behind zip log bags of water? My research
> found that the millions of molecules of water
>
> presents its own prism effect and given that flies have a lot of
> eyes, to them it's like a zillion disco balls reflecting light,
> colors and movement in a dizzying manner. When you figure that flies
> are prey for many other bugs, animals, birds,
>
> etc., they simply won't take the risk of being around that much
> perceived action. I moved to a rural area and thought
>
> these "hillbillies" were just yanking my city boy chain but I tried
> it and it worked immediately! We went from hundreds
>
> of flies to seeing the occasional one, but he didn't hang around long.
>
>
>