Fruit flies are in your house mainly because they are attracted to fermenting or rotting organic material. They are often brought in with fruit or vegetables that already have eggs inside when you buy them, or they enter by sensing the smell of fermentation from food, garbage, or drains. Fruit flies lay eggs on these fermenting materials, and since they reproduce quickly, an infestation can develop rapidly indoors. Besides overripe fruit, they can also breed in drains, garbage disposals, trash, compost, and moist environments like cleaning rags or mops.
In summary:
- Fruit flies can come inside on fruits or vegetables purchased from stores.
- They are attracted to the smell of fermentation and rotting food.
- They breed in any decaying organic matter or moist areas.
- Their life cycle is very fast, allowing populations to grow quickly in homes.
This explains why fruit flies may suddenly appear "out of nowhere" in your home.
