The Ultimate Water Bags as Fly Deterrent Quiz
Have you ever noticed clear, water-filled plastic bags hanging in restaurants and wondered just what these were for? Take this quiz and see how a bag of water can keep flies away.
If you see a bag of water hanging in a restaurant, what could be the reason?
- reduces the temperature
- saving on water pitchers
- keeps away flies
Why bother to chase flies away?
- only a nuisance
- carry germs
- ecosystem needs them as prey for birds
What do some advocates of hanging a plastic bag of water insist on adding to the water?
- burned matches
- piece of bread
- flakes of floating tin foil
Why, according to popular theory, would a clear bag of water drive away a fly?
- The sight of its own magnified reflection scares the fly away.
- The fly perceives it as a trap and flees.
- Flies are allergic to water in a plastic bag.
What is the most common reasoning for his method among entomologists?
- Water filled plastic bags emit a mild resonance that disturbs the fly's hearing.
- Flies avoid bodies of clear water.
- The light refraction confuses the fly and so it leaves.
How many simple eyes are there in each complex fly eye?
- 3,000 to 6,000
- 500 to 1,000
- 200 to 300
How do critics classify water bag success stories?
- triumph of modern technology
- old wives' tales
- successful application of fly personality studies
Why could the water bag seem to work?
- The refracted light distracts the customers and so they don't notice the flies.
- People are embarrassed to admit a weird theory does not really work.
- Placebo effect - effect is expected and so perceived.
What did a study using commercial, water-based optical repellants on two egg farms show?
- no significant effect
- less flies
- more flies
What does the study mean for homes or restaurants?
- direct correlation
- totally irrelevant