I understand that *most* people don't want to set fruit fly traps up around their house and then count every single fruit fly to see which one is the best. But I do.
Tuesday night is garbage night round these parts. And Wednesday night and Thursday night and Friday night and Saturday night and Sunday night and Monday night and every night.
At least it feels that way. Stupid garbage. I have a regular garbage bin, a compost pile, a compost bin, a recycling box for metals and a recycling box for papers.
Whatever happened to the olden days when we used to just throw our garbage out the car window and it would magically disappear because we couldn't see it anymore?
That means my compostables (fruits and vegetables) go under the sink for a week. When I pull the compost bin from under my sink, a planet of fruit flies has been known to rise up out of it. They then disperse with military precision around my kitchen. Their preferred assault positions are on the counter, the cupboards, and once, in my pretty, pretty hair.
I decided the best line of defence would be to dance around the kitchen flinging a tea towel at everything that moved but that didn't work because the fruit flies were like fighter jets and my tea towel was like a sloth on Prozac.
The time they got in my hair I became particularly disgruntled and immediately set out a bowl with vinegar in it and stretched plastic wrap over the top. Punched a few holes in it with a fork and I was done. That's the solution to fruit flies for a lot of people.
All of the stress from the fruit fly infestation required I have a stiff drink of milk. In the time it took to pour the milk and walk to the other end of the kitchen there was a fruit fly in it. I figured they must love milk so I set my glass of milk on the counter beside my regular fruit fly trap. Then I remembered that whenever I have fruit flies in the summer they always get into my vinegar bottle so I set that on the counter too. THEN I remembered about my DIY bottle fly trap from last year and made a miniature version of it with vinegar as a bait in the bottom instead of rotting shrimp.
And that is how the GREAT FRUIT FLY TRAP EXPERIMENT began.
I left the traps out for 3 days, which is how long it took to eliminate the fruit flies.
I then emptied the contents of each trap into a fine sieve, catching all the dead fruit flies, dried them on a piece of paper and started counting.
And here are the shocking results.
DIY Fruit Fly Traps
In order from least effective to most effective.
#4. MILK FRUIT FLY TRAP
Pour milk in a glass and leave it on the counter.
The milk probably would have caught a lot more fruit flies if it hadn't turned to yogourt overnight creating a solid surface that the flies could just walk on. It was not an easy nor a fun job to sift out the fruit flies from coagulated, curdled milk.
Milk in a glass caught 7 fruit flies.
#3. VINEGAR IN A BOWL FRUIT FLY TRAP
Set a bowl of vinegar out and stretch plastic wrap across the top tightly. Punch holes in the plastic wrap with a fork or toothpick.
I think most of you probably know this method. It was always my go-to for fruit flies. It came in second to last in my fruit fly trap experiment.
Vinegar with plastic wrap caught 21 fruit flies.
#2. BOTTLE OF VINEGAR FRUIT FLY TRAP
Leave your vinegar bottle out on the counter. Don't plan on using the fly filled vinegar in the near future unless you're training to go on Survivor or something.
My old fashioned vinegar bottle caught the second most fruit flies.
Old fashioned vinegar bottle caught 34 fruit flies.
#1. MASON JAR WITH A PAPER CONE FRUIT FLY TRAP.
Roll a stiff piece of paper into a cone and fit it into a mason jar with vinegar in it. The cone should be quite close to the surface of the vinegar.
Yes. I know. Close your mouth, you'll get fruit flies in it. I had the very same reaction when I saw how many flies this method caught. Once I counted them I WAS GIDDY AND NAUSEOUS.
Seriously.
Using a paper cone and mason jar worked THAT much better than all other DIY fruit fly trap methods. I sifted, dried and counted them.
This DIY method for catching fruit flies blows the other methods out of the water and I suspect it would do the same to any store bought fruit fly traps.
Had you told 16 year old Karen that she would make a pretty good living one day from drying and counting fruit flies she would have responded with a resounding "Yeah that sounds about right".
If you aren't sure how to do it or what it looks like here's my full tutorial on how to make one of these traps.
Any kind of vinegar makes a good bait and as anyone who drinks knows ... so does wine. But I found they seemed to be MOST attracted to Raspberry Red Wine Vinegar. It has all the components they love. Wine, Vinegar, and the sweetness of fruit. Plus it's great in a salad dressing.
I'll be emptying my compostable garbage a little more often for the rest of the summer.
Now if you'll excuse me, I have some gathering to do, I'm guessing it's garbage night again.
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Never really had a fruit fly problem since I take my compost stuff out every night BUT that was before I began sourdough growing. Now they hover around when they see me coming to feed THEIR starter because I will remove the coffee filter long enough for some to commit suicide in my starter. I learned to be really fast removing and replacing the filter but they do have a strong will to die. Now, I'm getting up to place a coned container of vinegar next to it! I make my own vinegar and didn't have this problem! OK, done and hopeful. Thanks! and Karen thanks you, too. Still doing great!
I keep my compostables in an ice cream bucket in the fridge. Just sayin'
You have room in your fridge for an ice cream bucket??! I spent 1/2 hour last night rearranging my fridge just so I could fit in the cabbage rolls I just cooked, lol. ~ karen!
I have a worm bin RIGHT in my kitchen. And I am not careful about what I feed them. I throw a few granules of Bacillus Thurengensis israeliensis, BTi, aka mosquito granules, in the spray bottle I used to mist the scraps as I add them...it works great. It works on all types of fly. Throw a few in your houseplants and watch them become inhospitable to fungus gnats.
If this were a recipe it'd get 5 stars. Amazing! My fruit fly problems are no more. Thanks! Really!
Excellent! ~ karen
Gross as it is, I use those fly traps, you know, the sticky ones that you unroll and hang in the window and then watch the flies as they struggle to get off.. Sadistic, or what? But I loathe house flies almost as much as I loathe fruit flies so imagine my delight when I discovered that they (fruit flies, that is) are also caught on that. We live in the country with lots of farm and wild animals around us and have infestations of flies every summer. I also have a couple of bottles with cone shaped narrow necks that came with essential oil and sticks. Perfect because I can't for the life of me do a proper paper cone and bottle thing. Between them, I have seldom got many live flying bugs of any kind. I use apple cider vinegar with a wee drizzle of dishwasher soap on top in the bottles and change the hanging strips once a week.
Canadian Tire has them and, I would think, most hardware stores.
Karen, I do this too! One day I came home from work and my husband had created this exact trap but he decorated it with little comic depictions of fruit flies and phrases such as "Fruit Fly Party! This way! (down arrow)" "welcome!" "Drinks! Friends! Free! Fun!" (I was very charmed and took a photo of this setup and I would post it here but can't.) I have been proselytizing this method for years.
LOL. I'm going to HAVE to start drawing pictures on mine. ~ karen!