Fruit Flies 101
Adult fruit flies (Drosiphila melanogaster) range in size from 1 to 2 millimeters, have red eyes and tan or brownish body. They like to lay their eggs on fruit that’s getting ready to be harvested; that’s how they make it into your home, though they can come in through open doors and windows. Once in your home, these small flies will hang out near rotting fruit, especially old bananas hanging out on your counter. These flies reproduce quickly—they can lay up to 500 eggs over the course of their 1-week lifespan.
Other common breeding grounds for these bugs include decaying meat, large spills of sugary soda or alcohol, sink drains, garbage disposals, empty bottles and cans, trash receptacles, wet mops and dirty rags.