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Most times the eggs of the fruit flys are on / in the fruit. Leave it too long and the eggs will hatch and you will get flys. These are harmless and fine to eat, infact you have probably eaten hundreds of fruit fly eggs in your life.

Fruit flies lay eggs in the skins of fruit, including bananas. When the bananas are ripe, that’s the signal for the larvae to eat their fill and molt into flies. Bananas release ethylene gas when they’re ripe, which signals the flies to hatch and eat, as well as signaling other fruit within range to complete the ripening process.

Fruit flies have a very short life cycle, so if you don’t provide anything else for them to lay eggs in, they die off when the original fruit is gone.

I didn't need to know this..

Oh great I will no longer be eating fruit

You missed the memo of elia5

How so? That’s exactly how I explained it to my 5 YOs.

Wait until you learn about eyelash mites.

Oh ok then your 5yo is smarter then me 😅

Thank you did not realize this. Does washing your fruit not rinse them off?

No argument here

You missed rule 4

Luckily most people don’t eat banana peels. Other fruit… wash it!

Fruits have fly eggs on them.

Nothing wrong with the both of us being too cautious.

*hundreds of thousands (ftfy)

Fruit fly like banana. Born from banana. When no banana, no fruit fly.

Or consider this, you have eaten many bugs and you're still alive. Hunter-gatherers can survive on bugs and they're fine.

Show them whose on top of the foodchain (and rinse your food).

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So should i wash my banannas and other left out fruits and no more fruit flys?

I just forgot about those…. Why would you do that

this subreddit hasn't been for that for many years. it's just for good explanations. there's no requirement that you use a slick metaphor that kids would understand. it's explained in Rule 4

Please read this entire message

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I was curious too so here is an answer (yes!): https://www.leaf.tv/7616359/how-to-wash-banana-melon-skins-to-get-rid-of-fruit-fly-eggs/

when fruit ripens this creates vinegar, fruit flies are attracted to vinegar because this usually means ripe fruits are near, when the fruit flies disappear I just assume they've left to search for another source of vinegar

Thanks, I hate it.

Fruit fly trap - mix a little vinegar, water, and dish detergent together. Leave it out in the open. Worked for me.