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Where Do Fruit Flies Come From?

Summary: Fruit flies are common pests of kitchens, but where do fruit flfies come from? The short answer is that fruit flies breed in any forgotten place where food material has slipped between cracks to decompose or where fruit has been left out too long.

James R; Johnstown, PA asks: I getting a lot of fruit flies in my kitchen during the summer. Where do fruit flies come from?

Dear James: To answer your question, "Where do fruit flies come from?", my suggestion would be that the fruit flies are coming in to your home on the fruits and vegetables that you are bringing in from the garden, grocery store or farmer's market. It's very common for this to occur during the warm summer weather.

Wash your fruits and vegetables when you bring them into the house. You can use a product like Veggie Wash if you are worried about removing waterproof pesticides. Or, refrigerate them. Either way, you want to remove the breeding source for the flies.

Ripe, soft fruits like bananas, peaches, pineapple and strawberries are some of the most frequent breeding sources for fruit flies. Once you remove the

Fruit fly on bowl

breeding source the fruit flies will be gone within hours. They have a very short life span so you won't see lots of breeding adult flies if they have nothing to eat or nothing to lay their eggs in.

A quick shot of any flying insect killer like Raid Flying Insect Killer will also do the trick for the adult flies. But, if you don't get rid of the breeding source you'll have the flies back in full force within a day or so.

Ask Rick A Question


20 Oct 2011, 09:06
well, I have done a thorough cleaning of my house and still have not found the source. I am lucky that I can say I don't have "millions" of these things. There always seem to be just one buzzing around. I see about 3 or 4 every day in different rooms. Sometimes I am successful at smaking them to death between my hands. I have gotten rid of the traps (they were too gross) and I've search everywhere for the source. I have two small children so I was hoping to find an apple core under their bed or something, but I didn't. My husband thinks I am obsessing over nothing. He claims he hasn't seen any in days. I wonder if I should just give up.
28 Oct 2011, 17:15
I've been heeding your advice and trying to locate the breeding source of my fruit flies, but have not found any decaying/rotting food anywhere. Could they be breeding in my trash can if I don't empty it every day? If I empty it, say, every other day, could this give them enough time to breed in there?
Ask the Exterminator
28 Oct 2011, 17:17
Small flies can breed in as little as 10 to 20 hours in warm conditions. The garbage can should have a liner. Check the bottom of the can to be sure it is not sticky to the touch. Check around the rubber gasket of the refrigerator, too. Touch everything for sticky surfaces.
18 Dec 2011, 11:05
I fertilized a home plant with compost, and the fruit flies are breeding there clearly. No matter how many traps, sticky fly paper I put up, they do not disappear. Will it help just removing the compost layer from the plant, or what else can really be done about this problem which has persisted for a couple of months. They don't seem to move to other plants I also feed compost.
23 Sep 2012, 21:51
I have these (nats, flies?)that hover on the outside of my kitchen window. They eventually make it inside the outside and annoy me! I have never seen or heard of this before. Any idea?
26 Nov 2012, 00:55
The drain beneath the sink appears to have ruptured and now the soil beneath it is infused with rotting food material. How can I neutralize this area to make it unsuitable for fruit fly breeding?
01 Aug 2013, 21:08
I scrubbed down my kitchen and bathroom with bleach.....Had my boyfriend pull out my appliances as well.....I still have at least a hundred a day....I threw out everything in my refrigerator and scrubbed that out as well.....I treated my drains and even washed all the walls down but still these little buggers keep coming....I use a mixture of Martini Austi and dish soap to trap them (lol, I think they like the wine as much as I do if not more) but seriously now, if you clean everything, seems the only choice left is to call an exterminator....what do you think?
23 Aug 2013, 15:45
I have a question I have apple vinger everyone and I cant get rid of the fruit flys theres nothing around too attract them what do I do I even hung fly traps
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