Projects, Science

Fruit Fly Trap

I love these Take and Toss cups. They are so versatile and despite the fact that they are cheap ($3 for 4 cups!) they hold up really well. I use mine for both my 1-year-old and 3-year-old. They are great for smoothies because they have wonderfully thick straws, but we also use them for water and chocolate milk. I even saw a mom use them as snack cups once, and I can see myself doing that too.

My latest use for them has been to make a fruit fly trap.

Do you have fruit flies? They lay eggs on your fruit and then buzz around obnoxiously getting on everything, and it’s really hard to get rid of them.

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Basically, you fill the cup 1/3 or half way with left over fruit. If you have a young child, I am sure you have plenty of left over food or banana that has “fallen” to the floor. (My 1-year-old lately just chews on apple and spits it out. I cannot figure out why he won’t swallow it. Even if I cut off the skin he does the same thing. But he always REALLY wants apples…)

Put the lid on the cup, then place a piece of tape over the straw hole. Use a knife to cut a small slit in the tape. (These Washi tapes are too cute! They can be used for innumerable art projects and gift wrapping, too.)

The hole should be big enough for them to crawl in but not big enough for them to easily find their way out. According to WikiHow, who first taught me about making fruit fly traps with old bottles and a paper funnel, the fruit flies are too dumb to find their way back out when the opening is small.

After a few days pour warm soapy water into the cup until all the flies have drowned. Then rinse and repeat.

This has really cut down on the number of fruit flies in our kitchen. They even choose the cup over hovering around the normal fruit bowl.

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