Stringham conducted a 13 week field trial by installing commercial water based optical fly repellents on two egg farms.
Hanging plastic bags filled with water.
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.
Hanging plastic bags filled with water will repel flies.
The bags were half filled with water each contained four coins and they were zipped shut.
The owner told us that these baggies kept the flies away naturally.
Naturally we were curious.
The water filled bags.
Yet you can see these contraptions all over the american.
Instead letting it fall into their weasely undetermined category.
This rumor has been circling the web for years and people have been using it to scare away flies for even longer.
Plastic bags half filled with water and containing a few pennies might seem like odd outdoor decor if you ve never encountered them before.
But if the idea of the contraptions hanging around your home doesn t appeal to you other alternatives are available.
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.
They note that the rumor to which skip refers about using some type of hanging plastic bag containing water to repel flies is very prevalent down south but in most variations the bags contain only water.
The main problem people encounter is that the plastic bags filled with water and coins aren t especially attractive.
The idea is that flies have poor eyesight and water filled bags create some type of optical illusion that scares them away.
It s easy enough to find these materials and ingredients.
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.
Interested parties have suggested placing venus fly traps around the home for instance.
Snopes ruled it neither true nor false.
Plastic sandwich bags or ziploc bags water lime juice around five pennies and salt.