Where do fruit flies come from? They don't just 'magically appear.

How to Eliminate Fruit Flies from Your Apartment – Ann Arbor Apartments

How to get rid of fruit flies — and stop them before they appear - The Washington Post

Unraveling the Mystery: Where Do Fruit Flies Come From and How to Prevent Them - Hawx Pest Control

No-See-Ums, But You Feel 'Em - Bug Squad - ANR Blogs

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Help! Are these fruit flies? They're everywhere! : r/CleaningTips

Where do fruit flies come from? - Franklin Pest Solutions

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Friendly Fruit Fly Fruit, Don't Starve Wiki

Where Do Fruit Flies Come From?

Fruit flies and gnats: what's the difference?