You buy a bag of grapes from the store. You think they’re clean. Ha! Joke’s on you.
Fruit flies hitchhike on your groceries. Those little eggs are already on the skin before you even unload the bags.
Wash your produce immediately. Or store it in the fridge. Cold air is like kryptonite for these guys.
Your Plant Soil Is a Hotel
Do you have a potted plant? Check the soil. Overwatered dirt gets moldy, and guess who loves mold?
Fruit flies. They’ll set up a nursery in the damp dirt. It’s cute in a gross, tiny-funeral kind of way.
Let your soil dry out a bit. Water it less. Your plants will forgive you; the flies won’t.