The idea is that flies have poor eyesight and water filled bags create some type of optical illusion that scares them away.
Hanging plastic bags filled with water.
Plastic sandwich bags or ziploc bags water lime juice around five pennies and salt.
When mike stringham professor of entomology at north carolina state university investigated the use of clear plastic water bags as a fly deterrent he encountered just such a situation.
Diy fly fighting tips shared online involves the following.
Snopes ruled it neither true nor false.
The water filled bags.
Yet you can see these contraptions all over the american.
The owner told us that these baggies kept the flies away naturally.
This rumor has been circling the web for years and people have been using it to scare away flies for even longer.
But if the idea of the contraptions hanging around your home doesn t appeal to you other alternatives are available.
Ziploc bags full of water and pennies don t act as a homemade fly repellent.
Instead letting it fall into their weasely undetermined category.
Plastic bags half filled with water and containing a few pennies might seem like odd outdoor decor if you ve never encountered them before.
Stringham conducted a 13 week field trial by installing commercial water based optical fly repellents on two egg farms.
The main problem people encounter is that the plastic bags filled with water and coins aren t especially attractive.
Clear plastic bags filled with water dangling in doorways or on porches or patios may seem like strange decorations but people actually hang these bags for a reason.
See example s we went with some out of town friends to sweety pies on sunday for breakfast and we sat in the enclosed patio section.
Interested parties have suggested placing venus fly traps around the home for instance.
It s easy enough to find these materials and ingredients.
The bags were half filled with water each contained four coins and they were zipped shut.
Hanging a plastic bag filled with water can effectively repel flies.